Mega electronics quick laser label system mega electronics 8l1 sa4 the silver a4 quick laser labels pack of 50 from mega electronics are a silver polyester label stock with a special matt surface suitable for the production of labels via laser printerssupplied on a 147g m polycoated liner for easy sheet processing these high quality labels have been manufactured using only the finest materials including the toner receptive matt coating which increases toner adhesion and durability ma