Osram Night Breaker bulbs: where to buy near Slough Trading Estate?

zkat used his keyboard to write :

I got some from Ebay. They are just detectably brighter, but I needed to replace anyway.

I've found this every time I replace headlight bulbs. I've a feeling they age.

Hi Harry

Likewise, one of mine is gone so I may as well replace both with a good set, hence the lookout. It sounds like the web is my bazaar so that's where I'll buy them, then. Was just hoping to get hold of them tomorrow, but hey, what's another day or three.

Thanks for responding, I'll say if I can tell the difference in brightness.

Cheers Zkat

All halogens do, not as obviously as LEDs or discharge bulbs but you can just see the difference.

They do....

You really need to compare a standard replacement lamp with one of the Osrams - which was what I did.

As lamps age the glass darkens and the filament can gradually become pitted, which increases their resistance. The extra resistance reduces the current flow and thus the wattage/light output.

What did you find?

I found a suggestion that these are brighter, at the expense of longevity:

Interesting also that the Philips is brighter in the H4 case. I seem to recall an Autoexpress comparison suggesting that the Philips counterparts were also more consistent than the Osram Night Breaker.

I found that there was a barely noticeable improvement in brightness, but keep in mind that the human eye needs large difference in brightness, before it becomes noticeable.

It was brighter and a little whiter, which convinced me to swap all four lamps on my bike.

I heard that too, but so far in the two years since fitting, none have blown.

We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember Kostas Kavoussanakis saying something like:

I fitted Silverstar 60Watters a few years ago and they were as bright as the 100W bulbs they replaced. The reason I removed the 100Watters was to avoid trouble with the weedy wiring.

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