Osram Night Breaker Laser H4

Is there any reason not to just fit some 100w xenon bulbs like these for about £7? I’m guessing they would just fit in the original lamps complete with the little rubber gaiters and the electrics could easily manage another 35W (so 3A). I suppose there might be a bit more heat produced, so that might keep my hands a bit warmer

https://rover.ebay.com/rover/0/0/0?m...2F350754325641

... I’m thinking these are well worth a gamble at only £6.75, delivered to my house.


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[daktulos]

Originally Posted by Othen

Is there any reason not to just fit some 100w xenon bulbs like these for about £7? I’m guessing they would just fit in the original lamps complete with the little rubber gaiters and the electrics could easily manage another 35W (so 3A). I suppose there might be a bit more heat produced, so that might keep my hands a bit warmer

https://rover.ebay.com/rover/0/0/0?m...2F350754325641

... I’m thinking these are well worth a gamble at only £6.75, delivered to my house.


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I don't think those are Xenon HID lights, just halogen lights with a blue filter. There doesn't appear to be a ballast - my guess is that the small print says they're "xenon effect" or something.

[DarrenSV650S]

The brand is xenon. The bulb is halogen painted blue

Originally Posted by daktulos

I don't think those are Xenon HID lights, just halogen lights with a blue filter. There doesn't appear to be a ballast - my guess is that the small print says they're "xenon effect" or something.

Why do you think that? It says HID in the title. I’m just curious, I don’t know much about headlamp bulbs.


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[daktulos]

Originally Posted by Othen

Why do you think that? It says HID in the title. I’m just curious, I don’t know much about headlamp bulbs.

They run at something like 30kV, so aren't a direct replacement for a 12V bulb - the upgrade kits would include a ballast which generates the signal to drive them.

Originally Posted by daktulos

They run at something like 30kV, so aren't a direct replacement for a 12V bulb - the upgrade kits would include a ballast which generates the signal to drive them.

These bulbs run at 30,000V? Can that be right? I think I need to do a bit more research into the technology if that is the case.

An addendum: the starter (just like the gas discharge lights I have in my aquarium) generates about 25kV, but once the arc is formed the they require about 80V to maintain it (good old Google). That sounds more plausible.

I think I’ll stick with the H4 halogen bulbs, they work fine.


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[DarrenSV650S]

Originally Posted by Othen

Why do you think that? It says HID in the title. I’m just curious, I don’t know much about headlamp bulbs.


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Probably because there is a picture of a halogen bulb dunked in blue paint. Also the brand name is Xenons.biz. Also you can clearly see that it is a halogen H4 bulb. Also the description describes nothing. Also the feedback describes the bulb as "normal lights with a blue tint". Also there is no mention or pictures of any kind of ballast whatsoever. Also it costs £6.75

Is this your first day on the internet?

Originally Posted by Othen

It says HID in the title

Oh yeah! Ok nevermind then, it must be a HID bulb

Originally Posted by DarrenSV650S

Probably because there is a picture of a halogen bulb dunked in blue paint. Also the brand name is Xenons.biz. Also you can clearly see that it is a halogen H4 bulb. Also the description describes nothing. Also the feedback describes the bulb as "normal lights with a blue tint". Also there is no mention or pictures of any kind of ballast whatsoever. Also it costs £6.75



Is this your first day on the internet?







Oh yeah! Ok nevermind then, it must be a HID bulb

You think me very foolish. Ho hum.


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[aesmith]

If intending to fit higher power H4 bulbs it would be worth looking into fitting relays and a direct feed from the battery. Consider that in the standard circuit the current for the lights passes through the ignition switch, then to and from the start button on the right handlebar, then through the dip switch on the left, then finally to the lights.

Originally Posted by aesmith

If intending to fit higher power H4 bulbs it would be worth looking into fitting relays and a direct feed from the battery. Consider that in the standard circuit the current for the lights passes through the ignition switch, then to and from the start button on the right handlebar, then through the dip switch on the left, then finally to the lights.

That is a fair point, two 60W bulbs are going to draw 5A each, so 10A, whereas two 100W bulbs will draw 16A. The wiring looks like it is about 1.0mm^2, so it would be on the margins. So, having thought about it, there would be no point fitting more powerful halogen bulbs. There is nothing much wrong with the standard ones.

As LEDs become cheaper (as they inevitably will) it may be worth converting to that type, one would expect the power consumption to be about 20% as much (allowing a bit for the little cooling fans they seem to have).


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