LED bulbs for automotive use are getting better. Right now the brightest LED chips are the Philips MZ, Philips ZES, Cree XHP50 and Cree XHP70. The latest LED bulbs copy the size and location of the filament of the halogen bulb. The purpose is to mimic the light pattern of the halogen bulb and to prevent glare. Though some models still use fans for cooling, some models are doing away with these noisy fans and use heatsinks and copper ribbons for removing heat instead.



These charts show what happens when you install LED in stock headlights with reflector. LED bulbs have different responses depending on the headlight housing of the vehicle. In some cases, the LED is brighter than stock halogen; while in some cases, the stock halogen is brighter than LED. In some cases, the LED is brighter than 35W HID. BUT remember that in the tests, the 35W HIDs were used with reflector and not projector. In some cases, the beam pattern is good and acceptable; while in some cases, they are bad and scattered.









Sent from my D5833 using Tapatalk