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Uprated H4 Bulbs anyone?

Started by Nix1.4, October 14, 2013, 07:49:13 PM

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viper

Quote from: gwocni on October 15, 2013, 01:22:29 AM
!00 Watts @ 12Volts = 8.3 Amps.
130 Watts @ 12 Volts = 10.8 Amps.
160 Watts @ 12 Volts = 13.3 Amps.

And......... If you double this as there are two lights it gives nearly 27Amps at 12 Volts........ Not for me I'm afraid, since the wiring would need uprating to sustain the higher currents.  :nono:


when the bike is running the volts are at 14.4, that brings the ampage down to 11a per bulb, that's not a lots and im sure the wires are plenty thick enough

shaggs147

160w? wouldn't that defeat the object by blinding everyone coming the other way? That's a big jump in wattage.
I'm not sure what the rectifier is rated at either, but would imagine its already working hard with heated grips and the like switched on.

gwocni

#17
Quote from: viper on October 27, 2013, 06:21:16 PM
when the bike is running the volts are at 14.4, that brings the ampage down to 11a per bulb, that's not a lots and im sure the wires are plenty thick enough

That's correct (the calculation) but the point, as I see it, would be that even 11A is almost three times more than the 4A of 60W @ 14.4V for a normal filament. Just my opinion but I wouldn't do it. Another thing that may matter a bit is that, regardless of dash indication, normal alternator output is about 13.8V and over 14V would normally be considered high. BTW don't bank on companies putting anything (like wiring) but the bare minimum in their goods. Again this is only imho I don't want to start an argument.

doebag

Quote from: gwocni on October 28, 2013, 01:02:05 AM
BTW don't bank on companies putting anything (like wiring) but the bare minimum in their goods. Again this is only imho I don't want to start an argument.

I would agree with that. The Vstrom forums seemed to regularly have people posting about failed headlights. The problem was almost always the penny pinching size of the wiring, causing localised overheating of the connector blocks/pins and cable.
'Dying a'int much of a living, boy'
Outlaw Josey Wales

Boomer

My 1000 used to have an 80/130W bulb fitted.
I did fit the ceramic connector (after the original melted) and wired the power directly from the battery via 2 relays and 30A rated cabling.
One relay was for lights on/off, the other for low/high beam.
Not had a failure since although now running a 35W HID.
I do have two 100W spotlights that are wired into the high beam relay.
With those and the HID the high beam pattern is as good or better than the 1400GTR.
Dipped beam is nowhere near as good as the 1400 though.

As for the higher wattage bulbs, so far as I can tell they are not illegal as there is no legal limit w.r.t. a maximum, just minimums.
Perhaps one of our Law Enforcement Brethren can enlighten us on this?

George "Boomer" Garratt
Wickford, UK
http://www.gtr1000.com