description: 1. Safety improvements and 5 modes of lighting, this equipment is essential for safe driving. And the indicator light is a button type, easy to operate. 2. Multifunctional If you remove it, it can also be used as an electric light. Use in running, jogging, hiking, camping, cycling, charging tires, night family/child activities, power outages, etc. 3. No tools are needed, and the strap installation is more convenient, concise and clear. 4. The front light is equivalent to the headlight of your bicycle. When riding in a dim or dark environment, the bicycle headlight can help you see the situation ahead and to the side. Of course, your headlights also help to make you more visible to other people (especially drivers driving in the opposite direction). 5.5 mode switching, a good bicycle headlight has a variety of settings, so you can customize the light according to the surrounding environment and the light level. specification: Name: Bicycle USB Front Light Colour: Black Weight: about 120g (with packaging) Size: about 7.4 * 2.5 * 3.6cm Material: Aluminum alloy + ABS Brightness: 350 lumens Range: 300-400m Mode: 5 modes (strong/medium/low/flash/strong and flash) LED lamp beads: L2 bulb Voltage: 3.7V Lighting life: strong light (about 3h), medium light (about 4h), low light (about 6h) feature: 1. Lightweight, USB charging 2. Anti-light rain, brightness LED 3. Li-ion battery 3.7V, quick release handle installation (suitable for 12-32mm) Bicycle taillights The rear safety light can be mounted on a backpack, pocket or seatpost. Name: Bicycle USB Tail Light power supply Light color: red/blue Weight: about 26.5 grams (lightweight belt) Size: about 7.2 * 1.7 cm material: plastic Mode: 4 modes Installation position: bicycle seatpost Light feature: night riding warning light Features: 4 mode lights, bicycle tail lights; USB bicycle lights Tip: Long press for more than 2 seconds to turn on the light.