Stop and Go Loading Dock Safety Light Set SG30

“The “”Stop & Go”” Loading Dock Safety Light Set greatly increases worker safety and is the best visual communication package for most loading docks. The set consists of two light units, the SG10 and SG20 for the inside and outside of the dock. A six-foot communication cable connects the two units. The set operates with a toggle switch that controls the inside and outside lights. The SG30 can be ordered without the toggle switch (indicated by “”NS”” in the part number) for installations utilizing a remote switch. Remote switches can be obtained from an electrical contractor or installation professional; they are not offered by Tri Lite.

How the “”Stop & Go”” Loading Dock Safety Light Set Works
When a truck is parked securely in the loading dock, the inside light is turned green. This indicates to the forklift driver that it is safe to enter the trailer. When the green light is on inside the building, the outside light is red, indicating that the truck should not move. Once the truck is unloaded, the inside light is turned to red. This tells the forklift driver to stay away from the truck. Simultaneously, the outside light is turned green, indicating it is now safe for the truck to pull away.”

  • Provides immediate and recognizable direction to drivers and loading dock staff, reducing the risk of confusion and error
  • Can be used anywhere a visual communication system is needed
  • Available in two colors: safety yellow or black
  • Polypropylene housing will not rust, pit, dent, or corrode like similar metal units
  • Choice of incandescent or LED lamps
  • No switch option available for customers who want to supply their own controls
  • Rated for indoor or outdoor use, IP54
  • Note: All incandescent “Stop & Go” lights must flash to prevent lens from warping. It is not necessary for LED lights to flash.
Part NumberVoltageAmpsHousing ColorLamp Type
SG30-12RG12 VDC4.34YellowIncandescent
SG30-12RG-LED12 VDC0.14YellowLED
SG30-24RG24 VDC2.2YellowIncandescent
SG30-24RG-LED24 VDC0.16YellowLED
SG30-115RG115 VAC0.42YellowIncandescent
SG30-115RGNS*115 VAC0.42YellowIncandescent
SG30-115RG-LED115 VAC0.08YellowLED
SG30-115NS-LED*115 VAC0.08YellowLED
SG30B-12RG12 VDC4.34BlackIncandescent
SG30B-12RG-LED12 VDC0.14BlackLED
SG30B-24RG24 VDC2.2BlackIncandescent
SG30B-24RG-LED24 VDC0.16BlackLED
SG30B-115RG115 VAC0.42BlackIncandescent
SG30B-115RG-LED115 VAC0.08BlackLED
SG30B-115NS-LED*115 VAC0.08BlackLED
SG30P-115RG-LED**115 VAC0.08YellowLED
SG30BP-115RG-LED**115 VAC0.08BlackLED
* Model comes without a toggle switch for installations utilizing a customer-supplied remote switch.
** Model supplied with 3-prong power cord.
Stop & Go Product Information SheetDownload
Stop & Go Signalleuchten für Laderampen (Deutsch)Download
Stop & Go Systèmes de Signalisation (Français)Download
SG30 Installation Instructions (English/French)Download
SG30 Wiring Diagram (English/French)Download
SG30 (No Switch) Installation Instructions (English/French)Download
SG30 (No Switch) Wiring Diagram (English/French)Download
SG30 Remote Switch Wiring DiagramDownload
SG30 Mounting Hole PatternDownload

Special Features

Swing Hinge

Swing Hinge Dock Light Arm

“Swing” dock lights feature a hinge that allows both vertical and horizontal adjustment of the arm.

Flex Head

Flex Arm Dock Light
Flex dock lights combine the strength of a standard dock light arm with the added flexibility of an impact absorber that bends the head away when bumped by a moving forklift or dock door.

Heavy Duty

Heavy Duty Dock Light
Heavy duty lamp heads are designed for the most demanding environments including wet and damp locations. Their rugged cast aluminum housing includes a shatterproof polycarbonate lens cover.


Fan Only Dock Light

Fans can be used separately or in conjunction with many Tri Lite dock light heads. The high capacity 3-speed fan provides air circulation and cooling throughout the trailer. 18″ fan rated for 3000 cfm.

Loading Dock Light Heads

Heavy Duty Lamp Head (HLED)

Heavy Duty Lamp Head (HLED)
Virtually indestructible! The HDLED has a cast aluminum body designed for the most demanding environments including wet and damp locations.

Metal Lamp Head

Metal Lamp Head
Traditional, powder coated metal light head featuring all steel construction for long life.

Polycarbonate Lamp Head

Polycarbonate Lamp Head
Unique, patented polycarbonate head is rugged and economical, it’s our most popular lamp head!

Arm Type

Single Strut Arm

Single Strut Arm

Single Struct arms are an economical lighting solution for low to mid volume loading docks. The arm features a hinge that allows both vertical and horizontal adjustment of the arm.

Double Strut Arm

Dual struts give this arm the strength to survive in the busiest and most demanding warehouses. The dual strut design will also support a fan or light/fan combination.
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