PowerTac E2 LED Keychain with CREE XP-G R5 LED 115 Lumens Cree XP-G LED (R5) with Lifespan of 50,000 Hours Three Modes of Output: 115 Lumens, 9 Lumens, 0.09 Lumens Stable Current Regulated Circuit, Stable Brightness Waterproof to IPX-8 Standard Premium Type III Hard-Anodized Anti-Abrasive Finish