To gum with a coverage factor of k 3. 483 nm 488 nm 493 nm forward current 1 i f typ. The plt5 488 from osram is a laser diode with wavelength 486 to 490 nm output power 0 06 w operating voltage 6 to 7 5 v operating current 85 to 100 ma threshold current 25 to 40 ma.