Note B1 has been discontinued, the new product B5 will replace it gradually. Now except 9012 socket, we will send you B5. B5 is with upgrade technology, new csp chips. Over 3000LM/Bulb, the power improved to 25 watts each bulb. And the light beam pattern is enhanced. Feature With a color temperature of 6,000 K and a very compact design, the OSRAM LEDriving HL retrofits provide an easy solution to upgrade car headlights with cool white LED light providing a stylish look as well as superior brightne.These new lamps allow a high compatibility and an easy installation for an even wider range of car models. LEDriving HL lamps are 12 V compatible. The pair of lamps comes with a 5-year OSRAM guarantee and with a long service life. Product Parameters Number of Bulbs 2 Chip Type B1 ZES Chips; B5 CSP Chips Color Temperature 6000K White Lumen Flux Over 2700LM/bulb, +50% Brightne Power B1 19W/Bulb Power B5 25W/Bulb Voltage DC 12V Condition Brand New Warranty 5 Years Low Beam Width +90% High Beam Width +110% Fit For High beam, low beam, fog light Single Beam H1 H7 H8 H11 9005/HB3 9006/HB4 9012/HIR2 Dual Beam H4 High/Low Beam Package includes 1 Pair Bulb with retail box - OSRAM original Note 1. This item is with a ballast, which have a temperature adjustment function. As the temperature of the bulb rises, the power will drop to a certain level. it's normal and it will help the bulb to prolong its service life. The actual power provided can be 80%~90% of the theory data 2. This bulb is WITHOUT canbus system, fit for 95% of the vehicles. For vehicles need canbus system it may show errors or flickering after using the LED. 3. About the adapter: Some H7/H1 lamp holders of some cars are not standard designs, and additional lamp holders are needed . If you are not sure whether you need an adapter, please contact our customer service and attach a photo of the lamp holder structure. We will provide aist