YAGE YG-8044F Portable Pen Holder LED Reading Lamp Product Features-1. This product has a novel appearance and adopts a hose design, which allows for flexible adjustment of the lighting angle.2. This product has a built-in rechargeable maintenance-free lithium battery with a rated capacity of up to 1500 mAh.3. Ultra-long life battery, up to 500 times of recycling.5. Use touch to control the on and off of LED lights and adjust the brightness and color temperature. Instructions for use1. Charging: Connect the desk lamp to a 5V charger, turn on the power, and the corresponding charging indicator light will light up; it takes 3-4 hours to fully charge normally.2. Touch button instructions:2.1 Turn the toggle switch to "I": Short press the "button": turn on→ color temperature→ turn off. 2.2 When the light is on:Long press the " Q button" to change the brightness from high to low or from low to high.2.3 When not in use for a long time, turn the switch to "O".3. When the battery is fully charged, the strong light can be used continuous- ly for about 2.5 hours.