1978 Nissan 200SX Headlights

SYLVANIA XtraVision® halogen headlight bulbs are designed to improve your night-time driving experience without compromising on bulb life. XtraVison bulbs provide brighter light on the roadway to improve your visibility, when compared to SYLVANIA Basic bulbs. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA XtraVision® halogen headlight bulbs are designed to improve your night-time driving experience without compromising on bulb life. XtraVison bulbs provide brighter light on the roadway to improve your visibility, when compared to SYLVANIA Basic bulbs. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

2 pin H4 connector

Product Features:

• Headlight uses a hard coated, UV protected, high impact resistant polycarbonate lens that resists cracking and yellowing
• Improve the driving experience for drivers by decreasing eye fatigue and providing better detail, thus decreasing chances for accidents
• Compatible with 12V and 24V electrical systems

SYLVANIA XtraVision® sealed beam headlight bulbs are designed to improve your night-time driving experience without compromising on bulb life. XtraVison bulbs provide brighter light on the roadway to improve your visibility, when compared to SYLVANIA Basic bulbs. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

Product Features:

• Headlight uses a hard coated, UV protected, high impact resistant polycarbonate lens that resists cracking and yellowing
• Improve the driving experience for drivers by decreasing eye fatigue and providing better detail, thus decreasing chances for accidents

NOT DOT APPROVED – OFFROAD USE ONLY Part Number: 002395991 Headlamp Size: 7 in Round – H4 65/55 watt – Hi/Low Beam Single Kit Contains: (1) Lamp Unit (1) Halogen Bulb H4 (1) Silicone Dustcover Hella’s Advanced Design and Powerful Performance. To Deliver the maximum in lighting performance, the Hella Vision Plus features the advanced Halogen bulb and a highly-polished metal reflector. The Hella Vision Plus is not only brighter than a standard Halogen sealed beam headlamp, the lamp’s advanced optics also provide a more uniform, controlled and even illumination on the road. Hella’s Vision Plus produces a 50% more powerful low beam and a 25% more powerful high beam than standard halogen sealed beam headlamps. This produces a greater range of vision for the driver, improves driver safety and reduces driver strain and fatigue. The Hella Vision Plus takes headlamp performance higher than ever before. Until now, headlamps with this level of performance were only available in Europe or for off-road and racing in the United States.

Product Features:

• Optical Quartz Lens
• Silverized Polished Aluminum Reflector
• Replaceable Bulb
• European version, NOT street legal in USA
• Based on European technology
• Brighter than standard Halogen lamps due to improved optics
• Produces 50% more powerful low beam and 25% more powerful high beam

SYLVANIA Basic sealed beam bulbs are designed to meet DOT regulations and SAE standards for performance and life. Made from high quality materials, they are designed to match the basic performance of your car or truck’s original bulb. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA SilverStar® high performance sealed beam bulbs provide a balance of improved visibility and bulb life to deliver a brighter and whiter light when compared to SYLVANIA Basic. The combination of downroad, sideroad, and whiter light helps to achieve more clarity during night-time driving. More clarity can improve contrast and object visibility such as street signs and road hazards while driving. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

Upgrade your low and high beam car headlights for a pair of SYLVANIA SilverStar® ULTRA halogen bulbs. Our brightest halogen headlight provides the most downroad visibility to see all aspects of the road better. The patented tri-band blue coating produces a whiter light compared to SYLVANIA Basic for improved contrast and clarity. SYLVANIA’s ultra-performance headlight bulbs allow you to see farther for a better night-time driving experience. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• BRIGHTEST HEADLIGHT: Superior coil design and proprietary halogen gas mixture produces the brightest downroad halogen headlight from SYLVANIA
• WHITER LIGHT: Cobalt blue and tri-band coating provides a whiter light with even more downroad coverage to help distinguish objects in the road
• ULTRA NIGHT VISION: The combination of farther downroad, whiter light and more sideroad visibility – allowing you to see farther
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• COMPLIANT: All SYLVANIA bulbs meet DOT and SAE regulations, making them safe for on-road use and eliminate dangerous glare when installed properly
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

This replacement headlight socket matches the fit and terminal count of the original equipment socket for specified vehicles. Made of quality materials with corrosion-resistant contacts, this socket is designed for reliable service.

Product Features:

• Ideal replacement – this headlight socket matches the fit and terminal count of the original equipment socket
• Durable construction – made of quality materials with corrosion-resistant electrical contacts
• Cost-effective solution – replaces only the damaged socket by splicing into existing vehicle wiring
• Quality tested – this part has undergone testing to ensure a quality fit and long service life

This replacement headlight socket matches the fit and terminal count of the original equipment socket for specified vehicles. Made of quality materials with corrosion-resistant contacts, this socket is designed for reliable service.

Product Features:

• Ideal replacement – this headlight socket matches the fit and terminal count of the original equipment socket
• Durable construction – made of quality materials with corrosion-resistant electrical contacts
• Cost-effective solution – replaces only the damaged socket by splicing into existing vehicle wiring
• Quality tested – this part has undergone testing to ensure a quality fit and long service life

This replacement headlight socket matches the fit and terminal count of the original equipment socket for specified vehicles. Made of quality materials with corrosion-resistant contacts, this socket is designed for reliable service.

Product Features:

• Ideal replacement – this headlight socket matches the fit and terminal count of the original equipment socket
• Durable construction – made of quality materials with corrosion-resistant electrical contacts
• Cost-effective solution – replaces only the damaged socket by splicing into existing vehicle wiring
• Quality tested – this part has undergone testing to ensure a quality fit and long service life

Upgrade your low and high beam car headlights for a pair of SYLVANIA SilverStar® ULTRA halogen bulbs. Our brightest halogen headlight provides the most downroad visibility to see all aspects of the road better. The patented tri-band blue coating produces a whiter light compared to SYLVANIA Basic for improved contrast and clarity. SYLVANIA’s ultra-performance headlight bulbs allow you to see farther for a better night-time driving experience. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• BRIGHTEST HEADLIGHT: Superior coil design and proprietary halogen gas mixture produces the brightest downroad halogen headlight from SYLVANIA
• WHITER LIGHT: Cobalt blue and tri-band coating provides a whiter light with even more downroad coverage to help distinguish objects in the road
• ULTRA NIGHT VISION: The combination of farther downroad, whiter light and more sideroad visibility – allowing you to see farther
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• COMPLIANT: All SYLVANIA bulbs meet DOT and SAE regulations, making them safe for on-road use and eliminate dangerous glare when installed properly
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

Upgrade your low and high beam car headlights for a pair of SYLVANIA SilverStar® ULTRA halogen bulbs. Our brightest halogen headlight provides the most downroad visibility to see all aspects of the road better. The patented tri-band blue coating produces a whiter light compared to SYLVANIA Basic for improved contrast and clarity. SYLVANIA’s ultra-performance headlight bulbs allow you to see farther for a better night-time driving experience. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• BRIGHTEST HEADLIGHT: Superior coil design and proprietary halogen gas mixture produces the brightest downroad halogen headlight from SYLVANIA
• WHITER LIGHT: Cobalt blue and tri-band coating provides a whiter light with even more downroad coverage to help distinguish objects in the road
• ULTRA NIGHT VISION: The combination of farther downroad, whiter light and more sideroad visibility – allowing you to see farther
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• COMPLIANT: All SYLVANIA bulbs meet DOT and SAE regulations, making them safe for on-road use and eliminate dangerous glare when installed properly
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA SilverStar zXe® headlight light bulbs offer the perfect balance of performance and safety with the style and attitude that come with a whiter light. Transform the look of your vehicle with a crisp, white light that is sure to impress. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• WHITER LIGHT: Proprietary Xenon halogen gas technology paired with a cobalt blue coating deliver a crisp, white light for added style
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA SilverStar® high performance halogen headlight bulbs provide a balance of improved visibility and bulb life to deliver a brighter and whiter light when compared to SYLVANIA Basic. The combination of downroad, sideroad, and whiter light helps to achieve more clarity during night-time driving. More clarity can improve contrast and object visibility such as street signs and road hazards while driving. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• BRIGHTER: A specially designed filament and proprietary halogen gas mixture produces a brighter downroad light
• WHITER LIGHT: Blue ceramic coating technology provides a whiter light for more clarity and improved contrast, making it easier to see objects in the road
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

The SYLVANIA SilverStar® High Performance Sealed Beam headlight delivers a brighter and whiter light. SYLVANIA achieves this using a specially design filament, propriety gas mixture as well as a lamp coating that shifts the color temperature towards a whiter light. The combination of downroad, sideroad, and white light produced helps the driver achieve more clarity during night time driving. More clarity can improve contrast and object visibility such as street signs and road hazards.

Product Features:

• Brighter Headlight = More Downroad
• Whiter light for added clarity
• Manufactured by trusted OEM light source supplier
• Legal for on road use
• Lights dim over time, replace in pairs for optimal performance

Sealed Beams – Halogen – Automotive

SYLVANIA XtraVision® sealed beam headlight bulbs are designed to improve your night-time driving experience without compromising on bulb life. XtraVison bulbs provide brighter light on the roadway to improve your visibility, when compared to SYLVANIA Basic bulbs. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA SilverStar® high performance halogen headlight bulbs provide a balance of improved visibility and bulb life to deliver a brighter and whiter light when compared to SYLVANIA Basic. The combination of downroad, sideroad, and whiter light helps to achieve more clarity during night-time driving. More clarity can improve contrast and object visibility such as street signs and road hazards while driving. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• BRIGHTER: A specially designed filament and proprietary halogen gas mixture produces a brighter downroad light
• WHITER LIGHT: Blue ceramic coating technology provides a whiter light for more clarity and improved contrast, making it easier to see objects in the road
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA Basic sealed beam bulbs are designed to meet DOT regulations and SAE standards for performance and life. Made from high quality materials, they are designed to match the basic performance of your car or truck’s original bulb. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

Visual fatigue is reduced by allowing a clearer view in all driving conditions and decreasing chances for accidents

Product Features:

• Headlight uses a hard coated, UV protected, high impact resistant polycarbonate lens that resists cracking and yellowing
• Improve the driving experience for drivers by decreasing eye fatigue and providing better detail, thus decreasing chances for accidents
• Includes adapter for non-standard wiring applications

SYLVANIA Basic halogen headlight bulbs are designed to meet DOT regulations and SAE standards for performance and life. Made from high quality materials, they are designed to match the basic performance of your car or truck’s original bulb. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Made from high quality materials for long-lasting durability to improve your driving situation
• OE QUALITY: Designed to match the basic performance of your vehicle’s original bulb
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

The basic halogen headlight designed to meet DOT regulations for performance and life.

Product Features:

• Made from high quality material for long lasting durability
• Easy installation as a direct replacement bulb
• Manufactured by trusted OEM light source supplier
• Legal for on road use
• Lights dim over time, replace in pairs for optimal performance

Improve the driving experience for drivers by decreasing eye fatigue and providing better detail, thus decreasing chances for accidents

Product Features:

• Headlight uses a hard coated, UV protected, high impact resistant polycarbonate lens that resists cracking and yellowing
• Improve the driving experience for drivers by decreasing eye fatigue and providing better detail, thus decreasing chances for accidents
• Bulk Pack

Sealed Beams – Halogen – Automotive

SYLVANIA Basic halogen headlight bulbs are designed to meet DOT regulations and SAE standards for performance and life. Made from high quality materials, they are designed to match the basic performance of your car or truck’s original bulb. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Made from high quality materials for long-lasting durability to improve your driving situation
• OE QUALITY: Designed to match the basic performance of your vehicle’s original bulb
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience

SYLVANIA XtraVision® sealed beam headlight bulbs are designed to improve your night-time driving experience without compromising on bulb life. XtraVison bulbs provide brighter light on the roadway to improve your visibility, when compared to SYLVANIA Basic bulbs. SYLVANIA headlight bulbs are designed with safety in mind to prevent glare when installed properly by focusing light where you need it on the road.

Product Features:

• DEPENDABLE: Designed and manufactured to improve your driving experience without compromising bulb life
• MORE DOWNROAD VISIBILITY: XtraVision bulbs deliver more downroad light for improved visibility when compared to SYLVANIA Basic
• EASY DIY INSTALLATION: A direct replacement for the factory bulbs in your vehicle, no modification required
• SMART MAINTENANCE: Headlights dim over time, always replace bulbs in pairs to ensure equal brightness and color
• PRO TIP: When changing your bulb, never touch the glass. Always use gloves or a clean shop towel to reduce the transfer of oils during install
• SAFETY: Compliant with DOT regulations and SAE standards, SYLVANIA headlight bulbs are designed with safety in mind to prevent glare
• TRUSTED BRAND: SYLVANIA is a trusted OEM automotive lighting manufacturer, with over 100 years of superior optical engineering experience