LED 9006 Headlight Bulb Review!
I am glad they "work" for you, I feel bad for anyone you are driving behind, or coming up on though... they probably dont flash the lights because they cant find the switch to flash the high beams because they cant see :P
New Member
Joined: Mar 2011
Posts: 65
From: Victoria BC, Canada
Have seen LED or HID projector kits for Jimmy / Blazers... Probably only way to go.
HID's or LED's used in Halogen designed reflectors will have major flare and cut off issues.
Focal length the bulb is critical, this can very from kit to kit...
The metal cut off plates and hoods in designated HID reflectors are critical with lens to control cut off.
Halogen reflectors either don't have them or not positioned correctly for HID's.
LED's have 2 light emitting diodes 180 degrees apart, compared to halogen filament output that is 360 degrees. LED's have to have reflectors and lenses designed to focus the light into desired beam shape and cut off.
As far as HID lights they do not have issues with cold temperatures with properly designed ballasts. Cheaper ballasts have inferior current regulation resulting in 5 to 30 seconds delay until full brightness.
Factory HID ballasts are instant start design, which reaches full output almost instantaneously.
Stock Envoy and Diamond Edition with HID's(see picture), have great low beam headlight performance compared to halogen equipped models (high beams remain halogen). These have instant start ballasts, located inside bumper below headlights.
PS anyone needing replacement HID bulbs or ballasts for Diamond Edition or Envoy, will find parts unobtainable! Work around is to use aftermarket HID 9006 kit. Turns out that these were 1st vehicles GM experimented with HID. For whatever reason GM decided to use halogen 9006 focal length to design these HID reflectors, instead of using european specs.
Using D1 or D2 HID's will result in incorrect focal length, flare and inferior performance.
HID's or LED's used in Halogen designed reflectors will have major flare and cut off issues.
Focal length the bulb is critical, this can very from kit to kit...
The metal cut off plates and hoods in designated HID reflectors are critical with lens to control cut off.
Halogen reflectors either don't have them or not positioned correctly for HID's.
LED's have 2 light emitting diodes 180 degrees apart, compared to halogen filament output that is 360 degrees. LED's have to have reflectors and lenses designed to focus the light into desired beam shape and cut off.
As far as HID lights they do not have issues with cold temperatures with properly designed ballasts. Cheaper ballasts have inferior current regulation resulting in 5 to 30 seconds delay until full brightness.
Factory HID ballasts are instant start design, which reaches full output almost instantaneously.
Stock Envoy and Diamond Edition with HID's(see picture), have great low beam headlight performance compared to halogen equipped models (high beams remain halogen). These have instant start ballasts, located inside bumper below headlights.
PS anyone needing replacement HID bulbs or ballasts for Diamond Edition or Envoy, will find parts unobtainable! Work around is to use aftermarket HID 9006 kit. Turns out that these were 1st vehicles GM experimented with HID. For whatever reason GM decided to use halogen 9006 focal length to design these HID reflectors, instead of using european specs.
Using D1 or D2 HID's will result in incorrect focal length, flare and inferior performance.
Last edited by roddy; Feb 13, 2024 at 12:04 AM.
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