Features: 8 channel multi-function infrared controller, each channel independently trigger and independently delay, do not interfere with each other. 4 kinds of functional mode: Non-locking (Momentary); Delay(2/10/60/600/3600seconds); Self-locking (Toggle); Inter-locking (Latch). The function mode and delay time are selected by the Solder pad. Low pulse trigger (Connect to the power-supply GND via the trigger button or low level control via the MCU IO port) "Momentary", "Self-locking" ,"Interlock" and "Delay" four functional modes. Specifications: Relay: Operating voltage: 5v, 12v (Optional) Operating current (dc 12v): standby current 8mA, 1 relay 37mA, 2 relays 66mA, 3 relays 94mA, 4 relays 122MA, 5 relays 150MA, 6 relays 178MA, 7 relays open 206MA, 8 relays 232MA. Infrared receiver: VS1838 (Or compatible with IC) Infrared remote control: N-E-C coding Working distance: 8-15 meters (receiver sensitivity 0.5mW / m2) Input control port: 5V TTL level ,NPN trigger, 0.2-2 second low pulse Relay maximum load capacity: dc 1-110V/5A; AC 85-265V/6A Item Size: 99 * 62 * 20mm / 3.9 * 2.44 * 0.79in Item Weight: 116g / 4.09ounces Infrared remote control: Transmission/coding: N-E-C coding IRED: infrared Wavelength: 950nm Power-supply: dc 3V Working voltage: 2.2-3.4V Working current: 10mA Static current: 1uA Transmit power: 90mW/sr typ. Working distance: 8-15 meters (receiver sensitivity 0.5mW / m2) Frequency: 38 kHz Button cell: CR2025 (not included) Operating temperature: +55 ~ -45 Storage temperature: -25 ~ +55 Item size: 85 * 40 * 7mm / 3.35 * 1.57 * 0.27in Item weight: 11g / 0.39ounces Package size: 120 * 85 * 40mm / 4.72 * 3.35 * 1.57in Package weight: 130g / 4.58ounces Glossary: NO: Relay normally open contact COM: Relay common contact NC: Relay normally closed contact Relay open: COM connect NO. Relay close: COM disconnect NO. Momentary: Press the remote control button (or trigger input port), Relay open, return to Close after 0.5 second; Self-locking: Press the remote control button (or trigger input port), Relay open, Press again, port Relay close, and so on; Latched: Enter the Channel 1 Latched command, port 1 Relay open, port 2-8 Relay close. Enter the Channel 2 Latched command , port 2 Relay open, port 1/3-8 Relay close Delay: Enter the Delay command, Relay open, delay of 2/10/60/600/3600 seconds)after, Relay close; Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * Relay 1 * Remote Control