AL555 - UL IP65 Electronic Twist-Lock Photo Control (photocell), Standard ANSI C136.10 &..UL773, Fail mode ON, 160J, Turn on:10-16Lux, On/Off Ratio:1:1.5, Time Delay..3-10 seconds, >5000 ON/OFF operations @ rated load, Load:1000w/1800VA/2A..E-Ballast, ...