5mm 850nm IR LED 10-Degree 0.1W Clear Lens

λ is the marking of the LED's peak wavelength. There are some mainly LED: 680nm LED, 700nm LED, 730nm LED, 760nm LED, 780nm LED, 810nm LED, 850nm LED, 870nm LED, 880nm LED, 940nm LED, 1200nm LED, 1550nm LED ect.

At the same power, the low value wavelength we got the more power radiation we will get.  The radiation intensity of infrared LED is expressed in mW/SR units, representing the magnitude of the optical power emitted by the unit solid angle (SR) emitted.

The infrared diode half power angle 2 θ1/2 refers to the half power angle of the lower or right side of the infrared diode when the infrared intensity is 1/2 of the maximum radiation intensity of the component, which is emitted at the upper and lower sides or the left and right sides of the diode.

The other wavelength are also available with this 5mm through-hole LED: 940nm LED, 970nm LED, 850nm LED, 880nm LED, 830nm LED, 810nm LED, 780nm LED ect.