SL40 Halogen Machine Lamp Model No./ Voltage Flexible support length (Corrugated metal hose) 12V/20W 24V/20W SLGN SLGNP - SLG28 SLG28P 280mm SLG40 SLG40P 465mm SLG50 SLG50P 520mm SLG60 SLG60P 620mm SLG80 SLG80P 820mm * 12V/50W or 24V/50W bulb is on request.