Interesting thread!

I had created and installed a full electrical system on my bicycle with a 12v generator, rectifier, and a SLA 6v battery. I then took a CatEye HL-HD100 headlight and converted it to use 10 LEDs and hooked it into the electrical system. Added turn signals fore and aft, plus a tail light with brake light, and I was all set. The headlight was disappointing, to say the least.

I recently bought a Night Hawk 10w light, and replaced my modified Cateye. Then I hooked that into the electrical system and removed my original SLA battery. Now I have plenty of light, no car mistakes me for a road-side reflector anymore, and I can ride at night in comparative safety.