Bike Forums - View Single Post - Good Lights for Commuting?

02-10-08 | 12:48 PM

#30

cyccommute

Mad bike riding scientist

Joined: Nov 2004

Posts: 29,068

Likes: 6,092

From: Denver, CO

Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones

Quote:

Originally Posted by ken cummings

I set up a little thread recently to try to find the most cost effective light going for dollars per lumen. Home-built lights wiped the competition by a few hundred percent. Commercial lights ran about a dollar per advertised lumen varying from $.45 to $2.00 per lumen. Wikipedia has a good article on luminous efficiency for different light sources Most of them from halogens to LEDs are all in the same ball park. That commercial Lupine Betty light is impressive at ~ $1,000 or so for ~ 1,200 lumen. I have a Do It Yourself light that has more power for $200.

My lights are about $90 per unit for everything. They put out 1550 lumen that comes from a single bulb which I've found is far more effective then bundling together 7 or 8 200 lumen units. By the way, my system works out to about $0.06 per lumen...for 4600+ lumens

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