Bicycle lighting

Largely out of date. Modern LEDs have improved so much that mass market off the shelf lights are mostly just fine.

• Busch & Müller Lumotec dynamo lights and others
I have a few on different bikes.
• SON Edelux uses the same optics as the B&M IQ, but different electronics and better heatsinking gets more power out of it. At a price, but probably state of the art, like the SON hub.
• Exposure (USE), and some measurements on them. Advertised as 5W LEDs, but they aren't running them at 5W (or at constant power).
• Lumicycle Neat little MR11 halogens, now with halide and LED options too.
• SolidLights
Based in Cambridge. I had a chance to try one some time ago, and it was very nice (but expensive). Now discontinued. I wrote a review comparing them with my existing systems. (I've added some comments in 2011, but it's largely obsolete.)
• Fireball (More expensive than Lumicycle, but maybe nicer (bayonet lock on cable, for example) (SolidLights use the same bayonet connector)) (Apparently dead now - but here's a 2003 BikeMagic review)
• Cateye (Little LED lights up to HID)
• Lupine - awesome specs, awesome prices.
• Light and Motion
• Laseredge (Look a bit like a US Lumicycle)
• Vistalite
• Niterider
• Night-Sun
• Nite Hawk
• Nova

• Willie Hunt's Lightbulb Voltage Regulators (as used by Surefire's very nice very expensive flashlights).
• Regulator for hub dynamo
• Don Klipstein's Lighting Info Site (including high efficiency LEDs).
• Lots about dynamos, in German
• Audax UK lighting FAQ
• Reflectalite replacement bulb finder
• Article about high power lights
• Home made light
• Bulbs and bulbholders
• Astroflight chargers, whattmeter
• Hokey Spokes light up patterns or messages for your wheels
• UltraLED's tire cap LEDs
• Ballast for HID bulbs
Early cycle lighting including oil, candle, and acetylene lamps