Skywolfeye CREE Q5 3.7V 1000LM LED Straight Flashlight Torch 3-Modes +1x 4200Mah 18650 Rechargeable Battery&1X Smart Adjustable Charger Designed to outdoor and indoor sports.,also designed to mount on bike with proper mounting equipment Oxidized surface, durable and long time use.lifetime-above 100,000 hours. non-slip design. Super brightness, best suitable for camping, travel, outdoor activities, etc Waterproof. Use it in rainy day, No problem! But don't try to put it into the water a long time. Super Bright, blinding Effect.