Model Number: IRM-1838 Type: LED Package Type: Through Hole Max. Forward Voltage: 2.0-5.5V Max. Reverse Voltage: 5V Max. Forward Current: 15-20mA Max. Reverse Current: 15-20mA Wave Length: 38KHZ Size: 5.9*7.8*7.4mm Lens: Black Shape: Square Life time: up 70000hours Transmission Distance: 8-12m Storage Temperature: -20~+80 Viewing Angle: 90