Bontrager Ion 800 R
Think of it as a USB-rechargeable torch
Displaying reviews 1-3
It is a bright light thats for sure, however 1st one failed within a week and the replacement failed on last nights ride - 6 months old and used about 10 times for an hr at a time.
Use it for day and night. Gotten a lot of cold and muddy use of the light, too.
At first was great. After 6 months, started flickering on and off when going over bumps. Now will work only when upside down. NOT reliable at all, and pricey on top of it.