3157 LED Bulb T25 3156 4156 LED Bulb

Yes. We offer a 30-day return window, even if the product has been installed (as long as it’s not damaged). Just contact our support team for return instructions.

Some models support dual-beam (hi/lo) functions, while others are single-beam only. Check your bulb size or contact us – we’ll help you choose the correct type for your vehicle.

Yes. All of our LED bulbs are designed to work in both reflector and projector housings, but we recommend checking the beam pattern after installation for optimal alignment.

You can reach us via:

Email: support@boslla.com

Facebook/Instagram DMs

Our team typically responds within 24 hours (business days).

Our LED bulbs output between 3600–10800 lumens per bulb, providing significantly better road visibility at night without blinding oncoming drivers.

Absolutely. Our LEDs are tested to work in -40°F to 185°F (-40°C to 85°C), making them reliable in snowy, rainy, or desert conditions.

Yes – if you select the correct bulb size.
You can check your owner’s manual, look up your vehicle on our website by year/make/model, or use our Fitment Tool to find the right size. Still unsure? Contact us and we’ll help verify compatibility.

No, as long as they are installed correctly and matched to your vehicle's reflector or projector housing. All our bulbs have a precise beam pattern to reduce glare and improve road focus.

Some vehicles, especially European makes (e.g., BMW, Audi, Mercedes), may require a CANbus decoder to prevent flickering or error messages. We offer compatible decoders to buy together.

Yes. Our LED headlight bulbs are IP67 or higher rated, meaning they are fully sealed and resistant to dust, water, and extreme temperatures.

Our premium LED headlight bulbs are rated for 50,000+ hours of use – that’s up to 5x longer than halogen. They’re built with aviation-grade aluminum and powerful fans for heat dissipation.

It’s a plug-and-play installation for most vehicles.
No wiring or modification needed. Simply remove your old halogen bulbs and replace them with our LED bulbs. Installation usually takes 10–15 minutes.

HID and LED bulbs are street legal in the USA for Fog Light use only. Not compliant with DOT / FMVSS108 and not street legal in the USA for Headlights. Legal for off-road use in Snowmobile and ATV headlights and off-road racing use only auxiliary or forward lighting. International street legality varies by country. For detailed clarification, check street use.

All LED and HID bulbs from all other brands, regardless of marketing claims, are prohibited from street use in halogen headlights in the USA.