How to Use: 1. The red LED light is on when charging, and the LED light turns green when the battery is fully charged. 2. Press the switch once to adjust to 30% brightness, press the second switch to adjust to 60% brightness, press the third switch to adjust to 100% brightness, and press it again to turn off the light. 3. Long press for 3 seconds to turn on the light, and it will automatically turn off after 45 minutes. Specification: Item Type: Clamp Lamp Gear Position: Three-Stage Brightness Adjustment Maximum Brightness: 60lm Weight: Approx. 78g / 2.8oz Material: PVC Light Color: White Light Product Color: White Battery: 1x500mAh 801740 Lithium Battery (Battery Included) Charging Time: 60 Minutes Use Time: The lowest brightness can work for 10 hours, the highest brightness can work for 3 hours. Service Life: 50000H Package List: 1 x Lamp 1 x Lamp Arm 1 x Clamp 1 x USB Cable