Energy Saving Controller User-friendly Reliable Cost-effective Efficient Convenient Smart Rail Timer Switch 220v Advanced Smart Description: and Ideal for household use in DB Boards 3500 Watt or 16 Amps 24 hours or 7 a week programmable Built-in battery for backup the memory when power failure Auto time error correction 30 sec, weekly Repeat programs with 16 on or off settings, and setting on or off manually Specifications: Working : 220V Temp.range: -20anddeg Cand50anddeg C Power Supply:according order Power consumption 4.5 VA (MAX) Display: LCD Switching contact: 1 changeover switch Programs:16 on or off each or week Hysteresis 2 sec or day (25anddeg C) Mini interval: 1min Capacity: 16(8) 250V Black-out: 60 Timer range: 1min-168hr Recharge battery: 1.2V 40Ma Average error: 1s or 24h, 25anddeg C Size: 80 x 56 x 36mm Weight: 0.2kg Package Included: 1 x Timer Switch 1 x 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.