?1 Year Warranty? If you are not satisfied with the ring light with phone holder, contact our 24 hours customer service through your order. You will get a satisfactory answer and solution within 24 hours. Tall & Adjustable Ring Light: Height Adjustable from 15 to 23 inches, this ring light is tall enough to sit behind your monitor, computer and laptop. Also the ring light is 360 degrees rotatable, easy rotate it and find your best lighting angle. ?USB Powered?This ring light for computer is powered by a 6.23ft USB cable, compatible with USB chargers, AC adapters, laptops, PCs, power banks etc. Besides, it also comes with a USB-A to Type-C adapter, you can charge it on more devices. (Note: 1. Make sure to use a power supply that supports 5V/2A output, the ring light may not work properly due to low power. 2. NOT recommended to connect the light to the laptop's USB port (especially when the other USB ports are also occupied). ?3 Colors & 10 Brightness Levels?elitehood desk ring light delivers 3 colors and each color has dimmable 10 brightness levels to cover various photography, zoom lighting, video conference and social media needs. The color temperature ranges from 2700K-6500K.The advanced sidelight diffusion technology and constant current drive IC combined to provide the most soft and uniform light, no glaring, no flicking and won’t hurt eyes. ?Compact Desktop Ring Light?A small flat metal base, 23 inch extendable metal rod and 8 inch adjustable light ring is combined to constructed this space-saving desktop ring light. You can put it behind your computer or laptop to get the perfect lighting for your videos conferencing, zoom calls or streaming on YouTube twitch.