Brightness Upgrade:VANSSI BK57 921 led bulb reverse light is built with 57 PCS high brightness chips. truly 18W/bulbs.360-degree lighting and no blind spots.much brighter than halogen bulb,you can see farther and clearer.
True CANBUS: VANSSI BK57 912 led bulb with built in resistor, CANBUS Error Free for 99% vehicles and no more having to hack the wiring to install extra load resistor to avoid "bulb-out" warnings and hyper flash.
Easy Installation: VANSSI BK57 T15 LED bulb have same interface with original halogen bulb,almost 1:1 original bulb size, non-polarity,plug and play.
Wide Application and Compatibility: Direct replacement for 921/912/T15/W16W bulbs (Fits sockets: 906, 902, 904, 916, 922).Direct upgrade for back-up reverse bulb of 12V Cars and trucks.
Stable Performance: VANSSI BK57 921 912 led bulb built-in smart IC driver and anti flicker decoding electronic components, stably controlling voltage and heat.Full aluminium body and breathable hole are designed for maximum heat dissipation to ensure longer bulb life.