Bicycling

I see no problem with a tail light on a helmet, provided you have another one on the bike itself. The reason for the light on the bike is for people behind you to see you if your head is turned.

You should also have a headlight on the bike.

Now, I have used various headlights on my helmet alone with taillights. Headlights are great at night when you hear something in the trees and want to see what it is. If you wear a headlight remember NOT to point it into on coming cars. You can blind a driver and THAT may be deadly to YOU.

Presenty I am using a Schmidt SON generator for my front light and taillight. 20 years ago when I first started to use a Generator, they were heads and feet over other headlights. The Schmidt SON has about the same resitence as an Shimano XT front hub and can provide power all night long. Expensive, but if you do any extensive riding at night still worth the money.

On the other hand, LED headlights last a good while, unlike Candescent lights that lasted one to two hours with a heavy battery pack (I use to have a Nite rider Light, the battery was heavy, in many ways to heavy to put on a helmet, but the light, on the helmet could brighten up a road way). When I had a Nite Rider it was before their embraced LED lights. With their embrace of LED lights, batteries are lighter and the lights are brighter. One of these days I wil get another ( I do have a problem with the name "Nite Rider", I am old enough to remember when that name did NOT mean a good things to African Americans).

On the other hand Nite Rider lights are very good:

http://www.niterider.com/

Peter White Wheels out of New Hamphsire is the US distributor of Schmidt SON generators:
http://www.peterwhitecycles.com/

More on the Schmidt SON:



http://www.peterwhitecycles.com/schmidt.asp


Just a comment if you put a taillight on your helmet, make sure you have a headlight and a taillight on the bike. Also, Safty studies have shown the best thing at night for a cyclists is a HEADLIGHT not a taillight, thus most states only require a HEADLIGHT at night for bicycles.