The RL25 Ring Light Kit features a 10-inch wide ring made of high colour rendering energy-saving LEDs. This is a perfect tool to bring more light into an indoor/outdoor video shoot, live show, fashion photography, makeup tutorials, YouTubing, Vlogging, etc. With controller, choose from three different light modes; white, warm, and natural and 10 levels of adjustable brightness to meet your different photography light needs. The smartphone holders are compatible with most of the smartphones available in the current market. The RL25 ring lamp is compatible with any USB charging port of e.g. laptop, PC, power bank, phone charger, wall charger, etc.