Littelfuse's PLED ultra-low holding current series exhibits a low holding current parameter that makes it compatible with LED lighting strings. The series provides an electronic switching characteristic for LED string replacement of a fluorescent tube. It helps to make the fluorescent ballast and LED string compatible with each other. This compatibility ensures the ballast will be able to activate the LED string, especially for those ballasts that need a high voltage output detection during ignition. The PLED ultra-low IH makes the LED driver widely used in the output of fluorescent tubes a compatible direct replacement for indoor and outdoor LED lighting strings.