Concept Lighting 303L Cordless LED Remote Control Picture Light, 18', Matte BlackSize:18' | Color:Matte Black Featuring a slim look and wide horizontal range. This cordless picture light is bright, dimmable and remote controlled! advanced solid state circuit using pwm (pulse WIDTH modulation) technology provides over 80 hours of life (on brightest setting!) requires 8 'c' and 2 'aaa' batteries. Safe for artwork- no UV/no heat easy installation (wall or frame mounted) remote control with dimming included(light can be controlled by remote or on Main unit). use one Controller for multiple lights for pictures up to 4.5 feet wide easy 'Drop-in' style battery Replacement. 80 hour rating measured by cycling at 12 hours of operation (on brightest setting) with a 2 hour rest period in between, using alkaline batteries. Better performance--up to 120 hours TOTAL operation--under realistic conditions of 4-5 hours(one evening‘s use) at a time. The maintenance free led's last virtually forever due to their 50,000 hour rating. They provide an unparalleled warm white color temperature and superior dispersion of light as compared to traditional led's for a warm, even glow over artwork. LED: 16 smd type (120 lumen TOTAL output). uses 8 'c' size and 2 'aaa' size batteries (not included).