features: 1.360°adjustable, Charging Only Takes 1-1.5 Hours. 2.ultrasonic Welding Technology Is More Waterproof. Indulge In The Unimpedediding, Allowing You To Enjoy The Thrill Ofiding. 3.cob Lamp Beads + Pc Lampshade, Bright And Not Dazzling. Description: Multiple Structures, Close Combination,eal Safe Nightiding. Specifications: Size: 70*20*20mm Type: Bicycle Tail Light Lamp Beads: 2835 Smd Lamp Beads Battery: Built-in 210 Ma Polymer Battery Brightness: Up To 100 Lumens Weight: About 55g (including Bracket) Mode: Alternately Slow Flashing-all Lights Flashing Quickly-alternately Flashing Quickly-always On Shell Material: Abs