Bike light is made of PC and ABS , durable to use. directional flashing indicates travel safety factor is greatly enhanced.High quality remote control LED directional light is used for night use, such as cycling, baby carriage, jogging, walking, road emergency and camping.Installation steps1. Take out the tail light and silicone strap2. Put the silicone strap on the tail light3. Attach the tail light to the bike4. Take out the remote control, fixing bracket and silicone strap5. Put the bracket strap on the remote control6. Install the remote control on the bicycle handlebarRemote control operation1. Left button: the left turn signal flashes2. Turn on the right: the right turn signal flashes3. Main light switch: red warning light4. Press the main light switch twice: red and blue flashes5. Press the left and right lights at the same time: the left and right turn signals flash at the same time6. The main light switch can be turned on at the same time as the left and right lightsItem Name: Bike LightLamp Beads: 4 Blue SMD/5 Red SMD/30 Yellow SMDBrightness: Red Light 10-15LMLight Color: Main Light Red, Left and Right Turn Lights YellowBattery: 500 mAh (Included)Life: 30000 HoursLife Time: 4-5 HoursGear Position: Main Light: Always On-slow FlashingLight Size: 12.5cm x 4cm x 4.5cm/4.92inch x 1.57inch x 1.77inch (.)Remote Control Size: 5cm x 4cm/1.96inch x 1.57inch (.)color:Black:PC+ABSsize:123 x 40mmPackage Contents:1 x Bike Light1 x Remote Control2 x Silicone Strap1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.