Comparison : Item # DL24-HDLED, Tri Lite Heavy Duty LED Dock Light
Item # SDL24-HDLED, Tri Lite Heavy Duty LED Dock Light
Item # DL40-HDLED, Tri Lite Heavy Duty LED Dock Light
Item # DSDL40-HDLED, Tri Lite Heavy Duty LED Dock Light
Item # SDL40-HDLED, Tri Lite Heavy Duty LED Dock Light