Feature: 1. Applicable Voltage and Current: Smart breaker switch supports 100‑240V voltage, 16A high current, suitable for all kinds of household appliances. The wiring mode is single fire wire or zero fire wire. 2. Compact Size: Small size can be directly installed in the bottom box of the switch, not need to be placed in the ceiling, convenient maintenance operations, beautiful and generous, does not occupy space. 3. Stable Performance: Smart breaker switch is based on for Zigbee technology, stable and reliable, long distance signal transmission, safe and reliable. With countdown, timing, group function, sharing function. 4. Easy to Use: Smart breaker switch works with for Google Home, for Tmall Genie, etc; 3 states including default on or off, or memory state. 5. Intelligent Operation: Professional smart breaker switch can be connected with for Tuya smart home ecosystem for more intelligent operation and scene linkage. Specification: Item Type: Smart Breaker Switch Material: PC Weight: Approx. 46g/1.6oz Size: Approx. 59x42x20mm / 2.32x1.65x0.79in Wiring Mode: Single Fire Wire or Zero Fire Wire Input Voltage: 100-240V 50 60Hz Maximum Load Current: 16A WiFi Standard: 2.4GHz802.11b g n Application Name: for Tuya Smart, for Smart Life Wireless Standard: for Tuya Program, for Zigbee 3.0. Package List: 1 x Smart Breaker Switch1 x Manual Note: Manual measurement please allow some error.