If the lamp doesn't work Warm reminder Replace the battery, or remove the battery and use USB power Large Lamp Head Lamp is made of high-strength plastic, excellent quality, and the large lamp holder provides better lighting and creates a bright lighting environment Pen Holder Storage Base design storage function, to help tidy up the messy desktop, suitable for children to learn and draw, cultivate children's organizational ability Touch Switch Short press to adjust the brightness(touch control 1s interval), long press to switch mode, quick double click to switch the night light on and off USB Output for Phone Charger There is a USB output port on the back that can provide power to any USB device, usually used as a phone charging Multi-function/Multi-mode/Practical type Features of this lamp (Why buy this lamp？) ●2-way use (USB-powered or battery-powered, with circuit protection), Full spectrum light CRI > 90, high brightness, eye protection lighting ●High quality, larger and higher lighting (to meet the needs of large screen office), Does not occupy space, is conducive to sorting and space utilization