... changeable 3,Cheap price and easy to use Waterproof silicone LED bike light Specifications: 1,Product Size(mm): 45(L)* ... 3V battery 5,Switch: push button on/off 6,Led life :100 000hours7,Material: PP+siliconeFeatures:1, Flexible ... as to customer's panton No. 6,Usage: light up in the dark when you ride a bike ... to contact us. Mobile: 0086 13790926518 Skype:Linda27877 Waterproof silicone LED bike light