TM618 can automatically switch on and switch off various kinds of electric equipment at a preset time. It is widely used in 7 days programmable control of streetlight, neon light (sign), lamp, water heater, air conditioner, billboard, electric cooker, booster, sprayer, bottler, preheater, agriculture facilities and broadcasting equipment etc. The digital timer switch is within battery, to save the programs for power failiure.   it has the features of low consumption, high-accuracy CMOS chip, strongly anti-jamming, simple and easy to set   perfect for household use in pannel mounted   3500 Watt / 16 Amps, 1NO      24 hours / 7 days a week programmable   Built-in Battery for saving the memory when power failure   Auto time error correction +/- 30 sec, weekly   Repeat programs with 16 on/off settings, and setting on/off manually   color: White   Material: ABS+electronic components   Technical Data:   Model:TM618sH   Temp.range: -20°C+50°C   Power Supply: 110V   Power consumption :4.5 VA (MAX)   Display: LCD   Output:Power direct output   Programs:8 on/off each day or week   Hysteresis 2 sec/day (25°C)   Mini interval: 1 second   Capacity: 16A 250V AC   Black-out: 60 days   Timer range: 1min~168hr   Recharge battery: 1.2V   Average error: 1s/24h, 25°C      Package Contents:   1 x Timer switch   1 x User Manual      Only the above package content, other products are not included.   Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.