SleekLighting Solar Energy LED Bike Light + LED Keychain - Durable Plastic Build - Environmentally Friendly, Easy to Mount SOLAR-POWERED LED bulbs are bright enough to keep you visible no matter the conditions. LASTING charge that provides up to 8 hours of light after just 2 hours of charging. MULTIPLE lighting modes that include flash, quick flash and constant mode. DURABLE build allows it to weather rugged terrain, and is easy to install as well. BONUS LED solar keychain, with an ultra-bright pocket-sized flashlight thats perfect for any cycling adventure.