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 more than 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: more than 10mA ?Static current: more than 1uA ?Transmit power: 90mW/sr typ. ?Working distance: 8-15 meters (receiver sensitivity more than 0.5mW / m2) ?Frequency: 38 kHz ?Button cell: CR2025 (not included) ?Operating temperature: +55 celsius ~ -45 celsius ? ?Storage temperature: -25 celsius ~ +55 celsius ?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