Rebaydo 2pcs 6 Ohm 50 Watt 3157 B Type Inline Load Equalizer is designed to fix CAN bus errors and eliminate hyper flashing for dual filament 3157 LED bulbs. It works from 6 Volt to 12 Volt with positive ground or negative ground and handles up to 4 Amps per filament, 8 Amps total. Includes two 50 Watt load equalizers for long life and cooler operation. The 3157B type socket has 3 tabs and is described as special for American cars. Both filaments are equalized to eliminate fast flashing or ODBC errors. Plug and play installation requires no crimping or soldering. Remove the LED bulb, insert it into the inline load equalizer, then insert the inline load equalizer into the LED bulb socket. The harness is approximately 10" long and uses both 14AWG and 18AWG wires. The harness insulation nearest the load equalizer is made of heat-resistant materials. The load equalizer body is made of aluminum. Load equalizers get warm or hot to the touch and should be mounted to a metal body to help reduce heat. The operating temperature is approximately 100 degrees Celsius, and the resistor temperature is stated as around 80 degrees. The load equalizer body measures 2.16" long, 1.57" wide, and 0.72" high, with a 1.30" screw center-to-center slot, 0.78" screw mounting slot length, and 0.13" screw mounting slot width. CE.