3528 SMD Infrared Emitter Led with 1000nm-1050nm Wavelength Spectrum 1W,5W,10W,20W,30W,50W,800W,100W,200W,300W IR power led ... ,10W,20W,30W,50W,800W,100W,200W,300W IR power led model3528 SMD Infrared Emitter Led with 1000nm-1050nm Wavelength Spectrum Absolute ...