[Customizable Timer Switch] This light switch timer repeats programs with 16 ON/OFF settings. Minute Setting Accuracy. [LCD Display and Easy to Install] This digital time switch adopts real-time LCD displays on "Hour/Minute" and "On/Auto/Off"; DIN rail installation, DIN rail is not included. [Indoor and outdoor electric timer switch] This timer relay with high accuracy and strong anti-interference ability, the timer is ideal for control street lights, neon lights, production equipment, radio and television and many other home appliances. [Rechargeable batteries and industrial chips] This programmable digital timer has a rechargeable battery built-in and industrial-grade chip, which can protect your programs during power outages. [Advanced Preset Function] This programmable timer switch allows advanced presetting one week ahead, with a universal digital electronic switch for daily and weekly programs, minute setting.