【300% Brighter】921 led bulb has 3030 SMD LED chips, with high illumination and perfect beam pattern, supporting 1400 lumens brightness with 6000K white light output. You can see farther and clearer when reversing at night. Working Power: 5W; Working Volts: 12V-24V | 【Easy Installation】1:1 Design with halogens, Non-polarity, Plug and Play. 921 led bulb reverse light is fit for socket 921, 912, T15, 906, 904, 902, 922, W16W, etc. Upgraded replacement for reverse light, backup light and truck cargo light. The bulb size is 0.35"*1.4" | 【CAN-BUS Ready】LASFIT 921 T15 led bulbs have built-in CANBUS system, compatible with 98% vehicles, preventing from error code, odd flickering, and radio interference. However, for some sensitive models of Audi/BMW/MB/Jeep/VW/Ram, they may still flicker or throw error code. If you have one of the above vehicle, please contact us to double check before purchasing. | 【Safe Driving】Loaded with mini fuses to prevent 912 led bulb from burning out by the excessive instant current to ensure safer installation. Efficient heat dissipation make sure the T15 led bulb will work 30,000 hours. 3 Luminous Points Design, with similar beam pattern to halogen to provide safe driving. | 【Professional Service】45 days money back guarantee and 1 year services, with US local customer support in California and 24h online consultation with fast response. If they have any problem upon installing or after use, please contact us directly to get replacement. Notice: This 912 led bulb is not compatible with 2019-2021 Ram 1500 on the cargo light which may cause key fob interfered.