Alla Lighting A9 LED Headlight Bulbs w/High Power LUMILEDS LUXEON ZES Chip,8000Lm 6000K White Lamps (H11(H8/H9)) (Set of 2) 6000K White light led bulb: 8000 lumens(4000 lumens per bulb) without dark spots Authentic high power & premium quality Luxeon ZES chips & cooper heat sink design for longer life span & further light output area. Peferect replacement for the halogen headlamp;Easy installation about 20 minutes according to the installation manual included. For most vehicles, just direclty plug-n-play, yet for some European vehicles or newest vehicels, it may require to install the decoder to avoid the error code or blinking. Cross Reference Number: H11, H8, H9. We offer a free ONE year warranty and lifetime support, hassel free return for refund within 30 days if not satisfied.