Frequently Asked Questions

What type of power supply should I use to drive your LEDs?

LEDs should only be driven by a current source and never a voltage source. Typical of diodes, a small change in voltage can result in a very large change in current. IOI has a range of LED drivers and controllers that are available designed for the LumiBright LE and LS product lines. Alternatively, any good laboratory grade current controlled power supply can be used provided the current and voltage settings specified in the product literature are observed. As a word of caution, even if a laboratory grade power supply is switched to current mode, the voltage still should not exceed the order of 1 Volt above the rated voltage for the device; otherwise the inductance in the line could damage the LED device.

What LED wavelengths are available?

IOI specifies standard LED die wavelengths in the specific product literature, however, if other wavelengths are required for your application, non-standard wavelengths can be accommodated, provided they are available from our LED die vendors. For a complete list of all available LED wavelengths please see our wavelength chart. Please contact a Sales Representative or Applications Engineer with your specific requirements for non-standard wavelengths.