Lucas Lighting M-7443W

The 7443 style is a dual output that can be used as a reverse bulb, brake light/marker light or turn signal/marker light. It is designed to have a lower output from the typically constantly used mode (ex: tail lights when you are not using your brakes and headlights are on) and a high output mode when the second output is engaged (turn signal, brakes applied). We offer this bulb as a switchback style for use on the front of vehicles where you would like to have the marker light illuminate in white rather than traditional amber.

The 7443 M Series bulbs redefine both performance and compatibility standards in the automotive aftermarket. Like our headlight bulbs, we recognize optimizing the light source position is key to having a proper pattern from the housing. You will notice that we now use fewer but much higher power LED chipsets oriented as closely as possible to the original bulb filaments. We have also incorporated the newest CANBUS technology to achieve compatibility with greater than 99% of vehicles without causing a bulb out error. In turn signal applications, these new bulbs eliminate the need to add resistors to the circuit to solve fast blinking issues.

Also compatible with the following bulb styles: 7443LL, 7443ST, 7444NA all CK style applications

Please note that you can use a 7443 style bulb to replace a 7440, but cannot use a 7440 style to replace a 7443 in any application other than a reverse light.