Ultra 2.0 LED Bulbs

The GTR Lighting H4/9003 Ultra 2.0 LED Bulbs represent a significant upgrade in automotive lighting, building on nearly a decade of design refinement and user feedback. This iteration focuses on delivering superior brightness, an optimized beam pattern, increased longevity, enhanced adjustability, and a more straightforward installation process, setting a new standard for their class. Engineered with high-density Elec-Tech NLW7535CV3 automotive-grade multi-core LED chips, these bulbs produce ultra-bright light within an ultra-focused beam pattern. The precise positioning of the LEDs ensures they align with projector or reflector optics, maximizing usable light for the driver while minimizing glare to oncoming traffic. The collars offer full rotational adjustability for optimal beam aiming. Reliability is a key feature, with a sophisticated heat-sink design that effectively maintains the bulb's body temperature below 80°C. This is complemented by a bearing-less fan for active cooling and a die-cast housing for the LED drivers, which is completely potted to protect all components from the elements. This robust construction ensures durability and longevity. The Ultra 2.0 bulbs feature a compact footprint designed to fit a wide range of applications. This balanced approach between maximizing output and minimizing geometry prevents premature failure often associated with high-power bulbs and inadequate cooling. The bulbs are compatible with H4/9003 bases and operate within an 11-30V DC input range. While providing up to 10x more usable light than other LED options, it is important to note that these bulbs are street legal in the USA for Fog Light use only and are not compliant with DOT/FMVSS108 for headlight use. They are legal for off-road use in Snowmobile and ATV headlights and for off-road racing use only as auxiliary or forward lighting.