1,The timer switch has an operating cycle of 24 hours, which has the advantages of low power consumption, energy saving and environmental protection. 2,Comes with removable nickel‑chromium battery, easy to use, has stable and reliable performance. 3,The minimum setting unit is 15 minutes, and the number of settings is 15 minutes or 96 times, which can meet various timing needs. 4,The shell is made of ABS material, which is flame‑retardant and friction‑resistant, making it safer to use. 5,Mechanical timing controller is suitable for street lamps, low-voltage time control systems, etc. Item Type: Timer Switch Material: ABS shell Model: TB388 Frequency: 50 or 60Hz Drive Mode: Quartz motor type Power Failure Compensation: 100 hours (delivered with battery) Cycle: 24 hours Minimum Setting Unit: 15 minutes Setting Time: 15 minutes or 96 times Battery: 80mAh built-in nickel-chromium battery (rechargeable) 1 x Industrial Timer 1 x Cable 1 x English User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.