Often the rear lights (LED) burn out due to the construction of the driver LEDs. It overheats and breaks down. This board is not sold separately, and manufacturers suggest buying the entire taillight, which is expensive. Used taillights can also fail unexpectedly. This is a known design issue with the F25. Our chips fix this design flaw and include a protection circuit against transient voltages. Based on a microcircuit with minimal external components and high efficiency, the board does not overheat. Energy is no longer wasted as heat. Features: - Plug and play installation (no cutting or soldering required) - Improved factory-manufactured replacement LED driver - All 4 tail light drivers are identical no errors, no interference - One driver fits either inner or outer light Fitment: For X3 F25 20112017 with LED rear tail lights Specifications: - Part Number: B003809.2 - Input Voltage: 916V - Max Input Current: 68A - Transient Starting Voltage: 32KV - Output Voltage Waveform: Square Wave - Frequency: 2510Hz - Output Open Circuit Protection: 1S - Output Short Circuit Protection: 1S - Input Voltage Reverse Connection Protection: 1S - Working Temperature: -40C to 105C - Working Life: 3000H - Color: Black - Material: ABS Package Contents: - 2 x Rear Tail Light Driver Note: Light reflection and display settings may cause slight color variation between the image and the actual item. Measurement allows an error of +/- 13 cm.