M-Wave Atlas 15 USB lighting set Handy and compact lighting set with a front and rear light that can be easily attached to your bike with silicone straps. Both lights have an on/off button, three functions and a battery indicator. The lights can be charged via the included USB cable. Specifications: Type: Atlas 15 USB Total weight: 115 grams Color: black Front light: Functions: 100% constant, 50% constant, flashing Lighting: LED (1 Watt / 70 Lumen, white) Diameter mounting strap: 22.2 - 35 mm Battery: lithium (rechargeable via USB cable) Material: plastic Rear light: Functions: 100% constant, 50% constant, flashing Lighting: LED (0.5 Watt / 5 Lumen, white) Diameter mounting strap: 25.4 - 35 mm Battery: lithium (rechargeable via USB cable) Rotatable: yes (90 degrees) Material: plastic Contents: 1 Front light 1 Rear light 1 USB cable