The Selfie Ring Light by LightX Direct works well. I charged it with the USB cable. It works for an hour on a charge. You can change the light mode by pressing the button on the back. There are 3 kinds of light--cold, warm and cold and warm mixed. All you have to do is clip the selfie ring light onto the top of your smart phone, and adjust the light and take your selfie. It can also be used as an emergency mini flashlight. There is 100% money back or replacement guarantee. My selfies came out really good. #RankBoosterReview ii, #Sponsored iii, Selfie Ring Light by LightX Direct https://www.amazon.com/gp/product/B0773LSTLF/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1