Join Date: Feb 2004
Location: Beaverton, Oregon, USA
I have to take issue with your exaggerated statements. The 35W HID capsules from Philips (arguably the best) produce 3200 lm (at 13.2V, not clear what happens at reduced voltage), whereas the Hella/GE/Osram H9 bulbs used in the DD headlights produce 2100 lm at the same voltage. That's more like 50% greater output, but not double. Additionally the plated-plastic low-beam reflector used in the stock LT headlight is of a lower quality than the free-form, cast magnesium reflectors used in the Hella modules and may not be optimal for focussing or reflecting the HID emission. I've not seen photometric data which support any assertion about relative brightness. While the HID may appear brighter to the eye, some of that may be dazzle which does not necessarily reach the road.
If HID works for you, that's great. You made the right choice.
And where I ride (a lot) the high beam gets used (a lot). It produces a brilliant, well focussed beam with no off-axis glare or dazzle, and lights instantly. Many people find it useful.
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