ITEM NAME:433MHz Switch AC 85-250V 1 Channel Relay Receiver + Self- 86 Type Remote Product Description Description: 433MHz Wireless Switch AC 85V-250V 1 Channel Relay Receiver + Self-.Working frequency: 433MHz. Working current: AC 85V-250V. Two-color LED lights, clear working status;. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.