Features: With 5-speed reduction cycle This temperature Control Switch has timing function Suitable for 5V heater,12V heater, 7.4v heater This thermostat is to control the temperature for a long period of time. DC 5V ~ 15V temperature controller. Button control, Simple operation. Specification: Product name: 5V~15V temperature controller Current: 2.5 A Connector: 5.5*2.1mm/0.2*0.1in Weight: Approx.46g/1.6oz Function: Power adjustment button action output status Indicator(RGB tricolor) Turn on the power no output no indication Connect once switch 100% red light Connect again the switch 80% green light Connect again the switch 60% blue light Connect again the switch 40% white light Connect again the switch 20% yellow light Connect again the switch no output no indication Timing function Timing function button action(indicator light slow flash) corresponding function Indicator(RGB tricolor) turn on the power corresponding time no indication long press the switch 3-5s into the timing module,this time the red light flashes,no action flashing 5s after the default timer 10H 600 red light flash Long press the switch 3 -5S then the red light flashes, then press the switch agan, green light flashes. 480 green light flash The green light flashes,then presses the switch once and the blue light flashes 360 blue light flash The blue light flashes,then presses the switch once and the white light flashes 240 white light flash the white light flashes,then presses the switch once and the Yellow light flashes 120 yellow light flash Press the switch again,the red light flashes 600 red light flash User introduction: Package list: 1 x Temperature Control Switch