Activates lights automatically within 180 degree detection area for greater coverage; Instant-on provides enhanced visibility to deter intruders; Built-in test switch aids in daytime installation; Detects movement up to 45 feet away for maximum security measures; Built-in photocontrol for automatic night-time operation; Precise pre-set time switch for 1, 5 or 10 minutes for no more guesswork; Photocontrol overide for 24-hour operation; Variable sensitivity control; 500W sensor works easily with other equipment such as video cameras or alarms, when extra measures are necessary; Lampholders are fully adjustable to cover a 180 degree zone with lighting; Packaged ready to install.