Brightz, Ltd. Green Go Brightz LED Bicycle Light (2-Pack) Go Brightz 6 Hyper Bright LED Lights last for 15+ hours on 2 AAA batteries (per unit)  Not Included 4 Modes of Control - 1 Constant, 3 Flashing - slow, medium, fast Water Resistant Bike Light Will fit on kid bikes and adult bikes! Brightz, Ltd. Go Brightz are available in 5 solid colors - Red, Green, Blue, Yellow, Pink  and Color Morphing