Features:
1. Made of quality aluminium alloy, lightweight, sturdy, anti-rust, waterproof, durable.
2. The premium LED light beads with the lens that can enlarge the lighting range, provides bright illumination for night riding with long distance of 200m.
3. Only supports extra power supply of mobile power bank.
4. With three modes to meet your different needs, two brightness mode and a strobe mode, energy-saving and bright.
5. With 2 O-rings for easily install light onto handlebar, can also be used as head lamp with helmet strap mount, good accessory for biking lovers.

Specification:
Material: Aluminium alloy
Color: Black
Light Type: T6 LED 
LED Bead Quantity: 2 pcs

LED Service Life: 10000 hours
Luminous Flux: Max. 2400 lm
Illumination Distance: 200 m / 656 ft
Mode: High; Low; Strobe (Turn Off: Long-press)
Waterproof: Yes (Rainproof - Resistant to Splashing Water)
Power Supply: Extra power supply with USB port
Interface: Standard USB

Circuit: Constant voltage circuit

Size(Length*Width*Height): Approx. 50 * 43 * 27 mm / 2 * 1.7 * 1.06 inch
Weight: Approx. 145 g

Package List:
1 * Lamp with Cable (with built-in battery)
1 * Helmet Strap Mount
2 * O-rings

Note:
The lamp needs extra power suppl from portable power bank.