ITEM NAME:Smart WiFi Wireless Smart Switch Module Socket Remote For Alexa/Google ZNP.1 WIFI Switch | Alexa Smart Switch. This Is A Reason. After The Smart Switch Is Added, It Does Not Affect The Original Switch. The Original Switch Can Be Used As Usual. This Smart Switch Has A Maximum Current Of 5A, A Maximum Support Power Of 1000W, And A Maximum Of 200W For LED Lights.