This will not illuminate the road at night but would be good for warning lights. It uses CR2032 watch battery which can be found anywhere..If you really want to save on these batteries, they make them in a rechargeable form. I was looking for something compact like this but with a brighter cree bulb. YOU GET WHAT YOU PAY FOR
Verified purchase: Yes | Condition: New
In the fall of 2018 I purchased 3 Serfas Apollo USB-rechargeable headlights. I don't think I used them immediately, but about 6 months later I attempted to charge and use them. I used a Serfas USB cable to charge the lights. When I initially plug the light in, it glows red for a few minutes, then the light goes out. When I unplug the light after an overnight charge, and then attempt to turn it on, nothing happens. They're completely useless. Serfas has been pretty good about this problem; they sent me 3 replacement lights. However, the replacement lights do not work either. That's a 100% failure; I do NOT recommend that anyone buy these.
Verified purchase: No
good
Verified purchase: Yes | Condition: Pre-owned
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