Pool Timer By Dewenwils, Wifi Timer Switch, Heavy Duty 40A 120-277, Etl Listed. HIGH POWER LOAD- Max 40 Amp 120-277 VAC 2HP load, operation from 120-277 VAC, ideal for outdoor/indoor heavy duty applications like water heaters,pool pumps,fountains,spa,mower, air conditioner and other equipment motors etc. It could control 1 device or 2 devices simultaneously APP VOICE CONTROL-Control connected electrical devices by your smart phone(TUYA/ Smart Life app) from anywhere or by voice commends(compatible with Alexa Google Assistant); no hub required; the APP search the device automatically; only support 2.4 GHz Wi-Fi network, schedule programmable, random, countdown, and repeat timer for your electric devices connected OUTDOOR RATED- ETL listed, the waterproof plastic shell prevents rainwater and dust from flowing into the junction box along the aperture, and the operation temperature is from -40?to 140 ? and will not rust even after rain and wind, free yourself from the hassle of going outside to turn off or store devices in bad weather EASY TO INSTALL- The timer module is removable, it could be disassociated from the box to provide enough space and convenience for wiring and settings; the wiring holes have 2 sizes( 1/2'' 3/4??) to choose, while the wiring caps also included for easy installation WARM AFTER SERVICE- The installation, wiring and settings are shown in the instruction manual, if you have difficulty in installing or programming, please feel free to contact us to get professional help One year warranty and lifetime technical support provided