1/2/4pcs Horizontal Book Holder Lamp with 14 Lights, USB Charging Version, 3 Color Temperatures, 10 Adjustment Levels ( Black )

Good luck with your favorite purchasesSpecification： LED: 12 LED (6 white + 6 warm) Charging method: Type-C (no adapter required) Voltage: DC 5V/1A Power: 1W Battery capacity: 600mAh Lumens: 80 lumens Color temperature: 3000K - 6000K Beam angle: Wide cone 120 degrees Functions: Brightness increase, gear selection, brightness decrease Gears: 3 gears (3000K warm white light, 4500K natural light, 6000K white light) Brightness adjustment: Short press, 10 steps of increase/decrease; long press, continuous dimming Indicator lights: 1. During charging, the indicator light is constantly blue; when the battery is fully charged, the indicator light goes off. 2. When the battery voltage drops to 3.3V, the red light is on; when the battery voltage is lower than 3V, the entire lamp stops working.