Specialists in designing and producing power supplies for lighting, Power Gems was showing an electronic PSU for moving lights - 'Clear Arc' ballast technology - itself a former PLASA Awards winner, and already in use by Robe Show Lighting. Its PSUs run at a very high 300kHz (150Hz is more usual), which allows it to run cool with consequently less fan noise. Other benefits from this PSU is an extension to lamp usability, as the burn envelope stays clearer for longer than is usual with more conventional PSUs.
