ITEM NAME:LED Warning Error Free Anti Flicker Resistor Flicking Canceler Canbus Description: For bulb size: H4 (Plug-N-Play installation) Good for headlight (low beam or ) as well as fog lights Eliminate interference and prevent light bulb flickering. Eliminate computer malfunction; Plug and Play, No Wiring Specification: Socket Type: H4 Voltage: DC 9V-32V 10A MAX Current Usage: Headlight, fog light Material: ABS plastics Package Includes: 2x H4 LED Headlight Error Free Canceller Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test. Thank you for your understanding and finding this item. Enjoy your shopping timeï ¼ SKU: DMO0012451452028775.Eliminate interference and prevent light bulb flickering. Eliminate computer malfunction;. 2x H4 LED Headlight Error Free Canceller. Plug and Play, No Wiring. The color may have different as the difference display, pls understand.