Headlamp connections

[Welsh Dan]

Maplin do one that'll take 6 amps.

[Jack]

Something like this?

[meritlover]

iam still worried about your wiring Mr Jack.
as i have explained you have nearly doubled the load on your high beam circuit.
i dont think the diode is really necessary, but it will not hurt the nova by fitting one.

[Welsh Dan]

Something like this?

Yes .

[Jack]

Cheers Dan, have some rep :D

iam still worried about your wiring Mr Jack.
as i have explained you have nearly doubled the load on your high beam circuit.
i dont think the diode is really necessary, but it will not hurt the nova by fitting one.

Fear not Mr Meritlover, I've had a think about this....

A normal H4 bulb and loom operates one two filaments within each bulb, only one filament at a time. There's no change to that on my planned wiring, as the main beam circuit is supplying a feed to the low beam/outer lamps (as if it was the main beam filament), and a signal wire is used to turn on a relay which has an independent power supply for the main beam/inner lamps. Effectively, the low beam and main beam wiring on the standard loom are still doing the same job, albeit to the same filament instead of to a different one. The main beam lamps are fed exactly as they were when I had the old H4 cibie outer lamps, and everything was a-ok then.

I am thanking you for your concern though

[loggyboy]

There is a good reason why the dipped beams cut out, and it has nothing to do with current draw.

[Welsh Dan]

Heat in a H4 bulb?

[Jack]

There is a good reason why the dipped beams cut out, and it has nothing to do with current draw.

My celica keeps the dipped on when the main beam is turned on.

Or do you mean on H4 bulbs only?

[loggyboy]

Yes H4s only (well twin fillament styles), as WelshDan said, its heat. The halogen (or xenon) gas can only keep the filament from burning out for so long, increasing the heat of both filaments under control for long periods of time will shorten the life. That why 'offroad' high wattage and aftermarket ultrabright lamps dont last long.