All Lamps have standard 4 pin rectangular pattern except for the XL60 lamp which has a wired connector plug
SF 300 14 Watt 287 mm long
SF 369 25 watt 369 mm long
SF 800 / 900 40 watt 840 mm long (EGPH840N/S)
SF 1000 – 80 Watt ? mm long (EGPH840N2/S)
XL60 – Davey EGPH550N2W lamp