Load Tester for 16 Poles and Sockets: The load tester is connected directly to the 16 pole connector on your bar. The LED lights will indicate which channels have a properly functioning lamp being measured. The Admiral load tester is also suitable to test your multi cables for insufficient connection in the contacts. Lamp and cable tester: Handy tester with three useful test functions: Single lamp test: test a luminaire for lamp failure. Multiple lamp test: check which of your 6 or 4 bar lamps are defect. Multi cable test: measure each vein of a 16-pin multi cable*.* this function is possible with an additional short-circuit plug (see related products)