Boslla B4 LED bulbs featured 6500k white, 4300k white-yellow and 3000k 3 colors, allowing you to change the color by switching on-off-on to fit all the road conditions.
The 6500K cool white lights offer clear vision at night, and the amber yellow lights at 4300k, 3000K with the best penetrating force, offer a clear view on rainy days, fog or snow!
If you are driving in foggy, rainy conditions daily or perhaps you live somewhere with heavy winters, these white & yellow LED bulbs are a must-buy.



Boslla B4 LED Headlight Bulb Benefits
- 3 colors all-weather fit, improve both the look and function of your cars.
- 7200 Lumen brightness, make your headlights 300% brighter than stock halogen.
- 1:1 design, super focused beam pattern, no dark spots, no glare, do not blind oncoming traffic.
- 360 degrees adjustable base ring, 100% plug-and-play installation, works with 98% of vehicles.
- 6063 aviation aluminum lamp body, 8500RPM cooling fan, IP67 waterproof, lifespan up to 50,000 hours.
- 1.5MM double-side purple copper heat conduction, intelligent temperature control system, for more stable performance.
How To Switch Colors

- Switch OFF and ON within 5s to change mode
- Quick switch 3 times within 1.2s to reset mode
- Auto reset to white light after 5s Headlights/Fog Lights OFF
All Weather Fit

- 6500k White, to improve nighttime vision.
- 4300K White-Yellow, for optimal visibility.
- 3000K Yellow, see better in heavy rain and fog.