Mercedes Benz W221 S300 S500 S350 S600 DRL Description:It is a pair of LED daytime running lights.these LED would highly increase the visibility of your car during day and night to improve driving safety. Function:Color Temperature Range: 6000-6700KPower: 1.0W/pcsRated Operating Current: less than 50maCurrent Stability: less than 2ma (24 hours)Brightness :70-90LM/pcs (left and right strict symmetric )Operating Temperature: -40 ~ 50 degressStorage Temperature: -50 ~ 80 degressProtection Features: Reverse Polarity Protection, Open Circuit Protection.Waterproof: After the rain simulation tests and immersionsimulation tests.Salt Spray test: Passed. Installation:1.Not need to change the fog lights, original car location to install, no need to paste a direct replacement for the original car black fog lamp shade, power cable can be connected to the fog lights on (open fog bright).2.Can also be connected to the battery positive and negative, the patented technology dedicated Daytime Running Light: the unique car to start Automatic Identification System (LEDs switch on their own lights turn on and off)!