Exclamation Light - 12 Volt Direct Current LED Wall Light for Solar and Other Renewable Energy/Off Grid Power Systems - High Transmission Matte Bright enough to light up a whole room! Uses same high-efficiency LEDs as the LightPortal Indoor Solar Lighting System, with a 3 way (high, low, off) switch: High ~1300 lumens (13 Watts); Low ~600 lumens (5 Watts); Off 0 lumens 0 watts. Can be powered by a LightPortal, a 12V Solar Battery Charging Station, or any other 12V DC power system. 12V direct-current system is simple and safe enough to install yourself. Generally installs in under 2 hours with basic tools. Includes 30 feet of indoor/outdoor cable. Cable terminates in click connects, which makes hooking it up to a LightPortal literally a snap. Can be controlled by adding a remote control or motion sensor, or on a schedule by adding a timer.