These led headlights adopt the original reflectional light output with authentic 2nd Generation ZES chips,aluminum material & cooper heat sink for much better heat dissipation to achieve longer lifespan & much further lighting distance. This listing includes two pairs (4 pieces) high power led headlight. ---Color:6500K xenon White light led bulb: 16000 lumens(4000 lumens per bulb) ---Mini design, Authentic high power & premium quality 2ND Generation ZES chips & opening cooper heat sink design for longer life span & further light output area. ---Application: Perfect replacement for the halogen headlamp;Easy installation. ---For most vehicles, just direct 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.