Tips: With 20mm PCB ,it means it has been soldering tin,saving your cost and time
Specifications：
Lens Color: Water Clear
Emitted Color : Infrared IR
Wave Length options:
680nm
730-740nm
760-770nm
800-810nm
850nm
970-980nm
1050nm
Output: 1W/3W
DC Forward Voltage (VF): 1.8V ~ 2.2V
DC Forw-rd Current (IF): 350mA(1W)/700mA(3W)
View Angle:120 degree