Recom lighting racd60 lightline 60w dual mode led drivers open frame recom lighting 21000134 a compact open frame 60w led driver with an output of 21 to 28v dc at 14 to 214a there is a factory set current limit of 21a and below this current limit the power supply works in constant voltage mode at loads above the preset current limit the unit works in constant current mode recom lighting 21000134 30 60w ac dc led power supply 21 28v