The Fostoria 40-LDA 40 inch Heavy Duty Mounting Arm is designed to be used with loading dock lights and fan head (sold separately).
40 inch Arm Length, 3 Arms Total
1.5 inch Square, 14 Gauge Steel Tubing Construction
3inch x 5 inch x 3/16 inch Steel Mounting Plate Attaches with (4) 3/8 inch Bolts
5ft Long, SJTW 18/3 Conductor Cord and NEMA5-15 Ground Plug
Fostoria 40-LDA 40 inch Heavy Duty Mounting Arm Sales Bulletin