This LED illuminator replaces the old pointer light illuminator found on multiple brand microscopes. The lens house shown in product image fits several microscope models including Nikon Labophot, Labophot 2, Olympus BH and BX series. The LED provides a much brighter, whiter light than the original, while consuming 90% less energy and generating 90% less heat. Eliminate bulb replacements and free up bench space that was used by the old power supply. The unit is self-contained with no separate power adjustment box like the original. Full range intensity control from 0 to 100%. The intensity control is right on the illuminator. Don’t waste money on a new microscope because of a bad illuminator. You can keep your perfectly good microscope working for a fraction of the price of an inferior new one. Bring your microscope up to date. Replace the old pointer light with a new Nanodyne LED system. All Nanodyne illuminator systems include the power supply and required cables. Everything required for the illuminator is included. Your new Nanodyne illuminator will add decades of useful life to your microscope.