When mains power fails, these fixtures switch to their own battery without anyone touching a switch, which is the whole point of emergency lighting. A 700mAh Ni-Cd cell holds at least 90 minutes of steady light, long enough for an orderly evacuation and for emergency services to work. Twenty four SMD2835 LEDs deliver 230 lumens of even, flicker free light, bright enough to pick out hallways, doorways and stairs without glare in smoke. Both heads pivot horizontally and vertically, so one fixture can cover a corner and a stairwell instead of requiring two, which reduces both installation and maintenance. The wide AC 120 to 277 volt input suits most commercial building supplies, 18AWG hardwiring keeps connections stable, and a test button makes routine compliance checks quick. Four fixtures arrive together.
