Mean well 18w single output switching power supply lpf 18 series mean well lph 18 24 the mean well lph 18 24 is an 18w single output switching power supplies from the lph 18 series this 18w 24v led power supply is a highly reliable low cost unit that comes in a fully isolated plastic case that is ip67 rated making them suitable for indoor and outdoor use in applications such as led lighting moving signs and back lighting led based decorativearchitectural lighting and led electronic di