K7C product features: 1,The two versions of K7C 150W and 110W are quite different, please read this paragraph before ordering to decide which version to buy. 150W has higher power and higher brightne, but we only recommend using it in projector headlights; 110W adopts the design of K5C 110W version, which optimizes the driving scheme and heat diipation system. 2, there is no obvious difference between the K7C 110W brightne and the K5C 110W brightne and the K7C performs better in some projectors. As the K7C has an additional copper tube and an improved cooling fan, the operating temperature will be reduced by around 8C to 10C. The H7, H11, 9005, 9006 and 9012 K7C models add a temperature sensor to the chip position, which has a positive effect on chip overheating protection. Please note, the temperature sensors for H1 and H4 are located at the bottom of the copper tube, AND reduce the H1 and H4 by 5W per lamp compared to other models. 3,Some Korean brand cars are not suitable for using bulbs with too high power, please consult us before ordering. Operating voltage: DC 9-12V Chip:150W=7035 LED Chip110W=K-XP LED Chip Operating temperature: -40degC ~ +80degC Colour temperature: 6000K/4300K Chip power: 110W/Pair,150W/Pair Design. All-in-one design with cooling fan With canbus function System life. >50,000 hours Design. All-in-one design with cooling fan Heat diipation principle: aircraft aluminium 6063 Actual power is 90% of theoretical power. Car suitable models. 90% of car models on the market Product includes A pair of LED bulbs One English manual Product guarantee. 100% brand new products 100% original production Supplied with 1 year original manufacturer's warranty