Features: Direct Replacement: Simply replace your existing ordinary ceiling fan with lights controller with iFan04, you will immediately get a smart ceiling fan with lights.  APP&433MHz RF Remote Control: Through eWeLink App, you can remotely control the ceiling fan with lights with ease on iOS & Android smartphone anywhere and anytime. The device can be also controlled via the RM433 remote controller (included in the package). The small 433MHz remote controller design allows you to hang it on the wall as a wireless wall switch or remove it as a remote control as required.  3 Fan Speeds: The APP enables you to choose low, medium, and high fan speed to keep your room comfortable. Besides, RM433 remote controller can be also used to adjust coolness level as you desire.  Timer & Schedule: By presetting single, repeating, and countdown timers, the iFan04 WiFi Ceiling Fan&Light Controller can be automatically turn on/off at a specific time.  Hands-free Voice Control: SONOFF iFan04 is compatible with Amazon Alexa ( Amazon Echo/Echo Dot/Amazon Tap) and Google Home Assistant. It allows you to use your voice to control your ceiling fan with lights and enjoy a hands-free experience.     Specification:  Model: iFAN04-H;  RF remote control: 433.92MHz;  Casing material: PC V0;  Wi-Fi: IEEE 802.11 b/g/n 2.4GHz;  Input: AC 100-240V  50/60HZ 5A;  Output: Light: AC 100-240V  50/60Hz 3A;  Fan: AC 100-240V  50/60HZ 2A;  Dimensions: 116 x 55 x 26mm;  Product Weight: 125g;  Certification: CE, FCC, ROHS;     Package included: 1 x WiFi Smart Ceiling Fan and Light Controller