MediaLight 6500K Bias Lighting System 140cm (42 LED's) with remote controlled dimmer Reference Quality Bias Lights from the Publishers of Digital Video Essentials High-accuracy 6500K CCT. Color Rendering Index (CRI) of 95 5V USB Powered (can be powered by any TV with a USB 3.0 port) Included AC Adapter (or power via USB 3.0) and Remote Control Dimmer