Re: [doc] H4 bulbs on the D...
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Re: [doc] H4 bulbs on the D...



I presume you mean "to double the bright intensity, the power of the pulb has to be quadrupled (using the current lamp technology)"

This can only regarded as a rule of thumb as the light intensity cannot be determined by the power consumption. Power is defined as the rate of energy consumption by an electrical device when it is in operation.

The SI Unit of Power is a Watt.
The SI Intensity of Light is a 'Candela' (and is v complicated and historical)

Don't mean to be picky.

In a nutshell JohnT Tien, due to the power consumption of the bulbs, it is recommended that you don't use them UNLESS you add a relay circuit and use heavier duty cable sufficient for the current of the new bulbs but then again, do you really want melted headlamps & eyebrow bumpers. Why not use the different gas ones like Xenon/ Neon etc..

NickT

Martin Gutkowski <martin@xxxxxxxxxxxxxx> wrote:

John Tien wrote:

> I have got displays "12V
> 100/90W".... will that cause a problem?? Will the bulb
> be too hot for the shell??

YES!!!!

> And can the existing
> DeLorean wire handle these 100/90W bulbs??

NO 50% more power = 50% more current, melted/blown fuses will result. In
fact all the new headlights I've seen all say not to exceed 55/60

It's all square law anyway. To double the power of a bulb, you have to
quadruple the wattage. ie 100W ain's twice as bright as 50W

Martin



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