Features: Four way remote control switches set, multiple working modes, simple and easy to use pairing method. Large button remote control, quality material, wear-resistant, waterproof, dustproof, and drop proof. Flame retardant housing, without fear of high temperature, flame retardant wiring terminals. FSK frequency hopping communication technology, automatic frequency hopping to eliminate interferences, 50ms fast response. Used for various types of lamp, outdoor lighting, advertising light box, garden irrigation, electric door/gate, etc. Specifications: Material: ABS Color: black, gray, yellow(optional) Voltages: 12V-36V, 220V(optional) Size: about 95x62x28mm/3.74x2.44x1.10inch Product Name: 4-Channel Remote Control Switches Set Receiving sensitivity: -105dBm No load current:<37mA Signal frequency: 433MHz Mediation method: ASK Load current: ≤10A per circuit Package Includes: 1pc Frequency Hopping 4CH Remote Control Switches Set note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.