Usage:The TM618 timer MODULE can open or kinds of electrical apparatus and power automatically, according to the preset time, the items can be streetlight, light (sign), , electrical appliances, broadcast equipments etc., the digital timer switch is within rechargeable battery, in 1.2V/40Ma, high-accuracy CMOS chip, strongly anti-jamming, easy to use. LCD display,easy to read. load capacity, output. Specification: Type: Timer Switch :Electronic Model Number: TM618H-4 Max. Current of Output Load:16A Mini interval:1 Max interval:7 Countdown OFF time range:1 min ~ 24 hours CLOCK DISPLAY TIMER (12/24hr ) AUTO TIME DEFLECTION CORRECTION, WEEKLY SLEEP MODE You can use the timer to SWITCH ON/OFF any electrical equipments at a preset timer 16 ON/OFF programs per day, 15 combinations to a week. 24 hours / 7 a week programmable. Built-in battery for backup the memory (save the programs you set)when power failure Auto time error correction +/- 30 sec, weekly Repeat programs with 16 on/off , and setting on/off manually, Easy to read LCD display, LED indicators Temp.range: -20C+50C Power Supply: 12V DC Power consumption 4.5 VA (MAX) Display: LCD Switching contact: 1 changeover switch Hysteresis 2 sec/day (25C) Capacity: 16(8)A 250V AC Black-out: 60 Timer range: 1min~168hr Average error: 1s/24h, 25C Material: ABS+electronic components colour: white Package Contents: 1 x Timer Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.