Fespp

Light Emitting Diodes or LEDs are small electronic devices that emit light in small range of frequencies, called its LED Spectrum which is determined during its manufacture. As manufactured products, they are subject to production irregularities in the actual light output of each LED. This produces a problem for some application where precise output frequencies and intensities are required. Thus, some manufacturers now offer LEDs that have passed through an LED Binning process. This process tests each LED and puts into separate bins, all LEDs with similar output ranges. This greatly reduces the irregularities per bin which makes them more suitable for precise applications. Buyers are therefore assured of quality and usability of their purchases.

An LED Tester works by using several LEDs, with carefully chosen and varying output frequencies, to test the light dependent properties of materials like glass. As each LED is activated, light passing through the glass is measured to determine the effects the glass does on the emitted LED light. Since there are several LEDs activating, each at its time, precise measurement through a wide spectrum of frequencies can be made. Tests such as this can also be used in testing light absorbing and/or reflecting properties of materials for mirrors and the like.