Attributes . Features: Energy-Efficient Mechanical Timers do not require Electricity to Operate, Automatically Limit the ON Times, Press-On Knob Design Ensures Quick and Easy Installation, CFL Compatible, Provide Direct Replacement of a Standard Wall Switch in Single or Multi-Gang 2-1/2 IN Deep Junction Boxes, Spiral Time Scale to Provide Easy Selection of the Time Setting, Standard Industry Accepted Molded Plate and Knob, Minimum of 0.085 IN Thread Engagement, Secure Teeter-Type Terminal, 1 Year Warranty . Names