LEPOWER 5 LED Book Light/Reading Light/Clip on Light with Flexible Neck, Portable Music Stand Lights, Eye Caring & Color Adjustable, USB& Battery Operated Bed Light, Perfect for Bookworms & Kids EYE-CARE & 3 ADJUSTABLE LIGHT COLOR: With 5 led quality lamp bead and 3 color temperature of natural light, white light &warm light, this clip on book light provides sufficient lighting, soft and no flicker when reading or watch the computer screen. So you can see the book pages or keyboard at night. Enjoy your hobby such as knitting, sewing, ect. BATTERY POWER SUPPLY & CIRCUIT PROTECTION: This music stand light can be power supplied by: AAA batteries*3(not included), certified 5V 0.5A ac adapter(not included), or you can use free USB cable and plug in your laptop or power bank (it is NOT rechargeable book light). Besides, the circuit protection on the chips will prevent the light short out, ensure long lifespan. If the light is with battery and connected with power, it will first use dc power and cut off the battery power. CLIP ON & 360 ADJUSTABLE: The jaw of this clip light reaches up to 1.18inch / 3cm. You can clip it on the book, magazine, desk, Mac Book, Kindle, e-reader, iPad, music stand, piano, orchestra pits, craft tables (DIY) or just set the lamp on a flat surface due to the sturdy base. The flexible gooseneck stem makes it easier to twist on 360 angle and set the perfect lighting point and enjoy a pleasure viewing. PORTABLE & CONVENIENT: Small and super lightweight with only 100g and doesnt require much space, you can easily bring it in your pocket, backpack or tote bag. The goose neck is perfectly flexible so that you can bend the light into a convenient size for travel and go easily into a carry-on suitcase. Also you dont need to worry about reading in nighttime while your partner is sleeping beside you. Weightless clip on light, you can have your children reading comics or books together in the bed. WORRY-FREE WARRANTY: For every LePower Led book light, we provide 12-month no hassle warranty and 60-day money back guarantee for each customer. Feel free to buy it!