LED Decoders / Resistors easy to install, No Modification is needed. Volts in: 9 to 16V. Solve OBC(On-Board Computer) warning error code, bulb rejection, hyperflashing, no flashing or burnt out bulb and prevent error message and error on vehicles. Work with LED turn signal light bulb: 7440 7440NA 7441 992 Designed to balances out the current draw of the LED kit and would offset the warning signals on the dash board. It will also eliminate turn signal light flickering that is caused by the Vehicle's computer not recognizing the low wattage LED bulb. Fixes on-board computer "bulb-out" error codes, rapid blinking/flashing/flickering, radio interference, LED light turning off when engine starts, etc. Why need LED Decoder When LED kit is installed in newer car models or cars with a computer controlled unit CAN BUS, often there is a error code showing on the dash board or the lights keep flickering and would not stay on. This is due to the fact that the LED kit is triggering a bulb out warning signal in your car's computer control unit. The 7440 Error Free Load Resistors works as warning canceller, decoder, capacitor, or blinker rapid Flash Equalizer to no error message for LED Light to install in your car, such as the turn signal light, reverse light, tail brake light, headlight with 7440 housing adapter. Fix Most Vehicles LED Kit Warning Canceller can solve problems of most vehicles Colour:black Material:plastic Size:5*3*3cm Package Contents: 2 x 7440 LED Bulb Decoder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.