On 2007-04-01, DeF wrote:
Not sure exactly what you need but I like the cateye HL-EL410
http://www.cateye.com/en/product_detail/341
This has three LEDs and is bright enough for riding where
there is some ambient light, eg street lights. It's more for
being seen than seeing.

I've got one of these mounted on the stem - works fine.

--
John
If I have not seen as far as others, it is because giants were
standing on my shoulders.
- attributed to Hal Abelson