TO:druid Dear Valuable Customer, Advantage of ring light 1.High quality led equipment, n flicker, no light radiation,low heat output,safety and environmental protection. 2.Warm light,warm white light,white light switch,can adjust the brightness,adjust to the most appropriate brightness. 3.Suitable for most devices that support usbport,suchas laptop,pc,mobile power supply,usb charger,ac adaters,etc. 4.Widely used in podcasting,live broadast video,video chat,selfie lighting,makeup,indoor filling lights,portrait,fashion,wedding art,advertising photography,etc We are confidence our products shall match with your every satisfactory,shall you have any interesting on our products please feel free contact us for more details. ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★ Ino Lv(Ms.) (Sales assistance/Marketing dept) 1st Tech International Co., Limited China mainland HQ:Xiaolan Industry Base,Xiaolan Town,Zhongshan City,Guangdong Province,China HK Branch:A5,8/F,Hung Fuk Factory Bldg,No.60 Hung To Road,Kwun Tong,Hongkong Sales hot line:+86-760-22212395 Fax:+86-760-22260040 Home: http://www.yuqiled.com/ http://www.1sttechled.com/ Youtube: http://www.youtube.com/user/yuqiled?feature=mhsn Email: sales@yuqiled.com , sales@1sttechled.com Backup: yuqiled@hotmail.com Skype account: yuqiled ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★