[Customizable Timer Switch] This light switch timer repeats programs with 16 ON/OFF settings. Setting accuracy down to the minute. [LCD Display & Easy to Install] This digital time switch uses real-time LCD displays for "Hour/Minute" and "On/Auto/Off"; DIN rail mounting, DIN rail not included. [Indoor & Outdoor Electric Timer Switch] This timer relay with high accuracy and strong anti-interference is ideal for controlling street lights, neon lights, production equipment, radio and television, and many other household appliances. [Rechargeable Batteries and Industrial Circuits] This programmable digital timer has a built-in rechargeable battery and industrial circuit, which can protect your programs during power outages. [Advanced Preset Function] This programmable timer switch allows advanced presetting of one week in advance, with a universal digital electronic switch for daily and weekly programs, minute setting.