This Cordless Picture Light way outshines any others: bright, dimmable, over 100 hours of battery life and Remote Controlled! Advanced solid state circuit using PWM (Pulse Width Modulation) Technology provides over 100 hours of life (on brightest setting!) - 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 3 feet wide - Easy "drop-in" style battery replacement - 100 hour rating measured by cycling at 12 hours of operation with a 2 hour rest period in between (on brightest setting), using alkaline batteries. - Better performance--up to 150 hours total operation--under realistic conditions of 4-5 hours (one evening‘s use) at a time - The maintenance free LEDâ€TMs 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 LEDâ€TMs for a warm, even glow over artwork - LED: 10 x 1.2 watt SMD - Uses 4 D size and 2 AAA size batteries (not included)