Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: I like these better than tire flys
Review: They are brighter than tire flys and a little bigger too. They seem to be a little more reliable too. I just wish there was a way i could turn them on and off. They stay on all the time when you move your bike, so they waste the battery during the day time.I use these along with aPlanet Bike Beamer 1 and Blinky 3 LED Bicycle Light Setand aDown Low Glow Lighting Kit - Two Tubes-Envy(green)lighting system for side visibility at night.
