Features: ABS material can be stable and durable 3LED lamp provides lower power consumption and ultra long lifespan, brighter than normal lamps Detachable and adjustable headlamp bracket design convenient for installation, suitable for most of bicycles Easy to replace the battery, only support 3 x normal AAA batteries, please not to use rechargeable batteries to prevent circuit burned Dual switch design, back switch control the electronic horn, 80dB 4 tones horn can be as good bicycle warning bell, front switch is the LED headlamp switch Due to the head light is too hard, can’t irradiate on human eyes straightly Specification: Item Type: Bicycle Headlamp Material: ABS Function: Lighting, Bicycle Warning Bell Light Type: LED Brightness: 20LM Battery Type: 3x AAA Battery (Not Included) Application: Most Of Bicycles Color: Black Package Included: 1 x Headlamp (Battery Not Included) 1 x Detachable Bracket.