"With the Nite Ize Radiant 100 Keychain Flashlight clipped onto your keychain, you won't have to fumble for your keys in the dark. You'll turn on this ingenious light and be able to see which key you need. This compact light boasts a durable, lightweight aluminum body for everyday use. The light's twist on/off operation delivers 100 lumens on high mode and 22 lumens on low mode. The Nite Ize Radiant 100 Keychain Flashlight is built so tough, it's impact- and shock-resistant, and it's waterproof (IPX7) in 1 meter of water for up to 30 minutes. The tailcap features an integrated anchor point, a split ring, and an included S-Biner MicroLock for easy attachment to your keychain, belt, or backpack. Runs on 1 AAA battery (included) for up to 5 hours and 30 minutes. 2.76""L x .63"" dia. Weight: .92 oz. No more fumbling for your keys in the dark! Compact light fits right onto your keychain Durable, lightweight aluminum body Easy twist on/off operation 100 lumens on high and 22 lumens on low mode Impact- and shock-resistant Waterproof in 1 meter of water for 30 minutes Includes an S-Biner MicroLock Runs on 1 AAA battery (included)"