Anybody using LED H4 bulbs in their headlights?

Anybody using LED H4 bulbs in their headlights?

I've got a few interior LEDs which are great but wondered if anybody had tried headlights. Did you get any warning lights on the dash?

2 X Car H4 120 SMD LED White Headlight Bulb Head Light

Would they be legal? 450 lumens is bright how many watts it that? And how o they work on high low?

An H4 bulb as std has two filaments plus a screen to give the dip and main functions, I can't see how these could give that.

It may be that they will physically fit an H4 holder but that's not enough to make them legal imho.

thebiglad said:

An H4 bulb as std has two filaments plus a screen to give the dip and main functions, I can't see how these could give that.

It may be that they will physically fit an H4 holder but that's not enough to make them legal imho.

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As Biglad said, I can't see how the dip beam is displaced unless it only lights up certain led's on dip/main?????

Probably for 4 headlight systems, a la BMW. Out of stock anyway.

warrior said:

Would they be legal? 450 lumens is bright how many watts it that? And how o they work on high low?

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Similar to 40W incandescent light-bulb.

I think it must be for the H1 bulbs?
So each of the 4 headlights has a single bulb?
How else can an LED work?

vette

Normal LEDs don't have the reach of filament bulbs also the beam pattern is all wrong aka illegal

Filament bulbs are focused by the whole head light assembly whereas LEDs are focused by the little lens on top of each LED. giving a diffused short range light pattern.

If the demand is there some enterprising Chinese LED factory will probably start making OEM fitments but don't expect it will be cheap.

Some cars have led headlights as standard factory fit, Lexus is one, I'm not sure of the legalities in the UK though and retro fitting is probably a no no, but if my led torch is anything to go by, they are far bright enough to use as headlights

Nigel1943 said:

Probably for 4 headlight systems, a la BMW. Out of stock anyway.

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I agree if they are legal they would prob be for the 4 light systems like BMW use, 2 bulbs for dip and 2 for main.

Think all twin light set ups are H7???

stchris356 said:

Think all twin light set ups are H7???

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H7 and/or H1

I am lead to believe by those peeps that make them, that they are very bright but not a very good beam length, so not yet the best thing for headlights, but very good for other lights.

Fitted similar units to a new audi recently.They are designed to present the correct load to the computer so as not to trigger the blown bulb warning.

Hmmm, i think with this new technology its a serious case of 'get what you pay for'...

Recently saw a set of replacement defender headlamp unit, LED with projector lens etc, £1500 for a pair...