Suit for outdoor cycling games.?

Features:?
Compact and portable to take out.?
Strong brightness￡? it is a great accessory to ensure your safety when riding at night.?
Easy to install on the bike.?

Specifications:?
Material: Aluminum Alloy?
Color: Red 1 /??Red 2??/ Black 1 / Black 2(optional)?
Lumen: 50 Lumens?
Charge Method: by using USB cable?
Mode: Strong light￡? Low light￡? Flash?
Battery: Li-polymer Battery?
Working Hour: 2 Hours?
Item Size: 3 * 2.5cm / 1.18 * 0.98in?
Band Length: 10cm / 3.94in?
Item Weight: 30g / 1.02oz?
Package Size: 17 * 10 * 3cm / 6.69 * 3.94 * 1.18in?
Package Weight: 58g / 2.04oz?

Package List:?
1 * Bicycle Light?
1 * USB Cable