4-1/2" Round Trailer Stop, Turn and Tail Light, Flange Mount, 3-Function

Optronics Trailer Lights - ST40RB

5-3/8" Diam x 1-9/16" D; Weather-proof steel housing; replaceable lens and bulb; snap ring secures lens; shockproof socket; flange mount; 2-wire; 1-bulb incandescent

4-1/2" Round Trailer Stop, Turn and Tail Light, Flange Mount, 3-Function

This is a round combination stop, turn, and tail light. This multifunction red light measures 5-3/8" in diameter by 1-9/16" deep. The light features a replaceable, snap-on acrylic lens and easy-to-replace bulb. The lens is kept securely in place with a metal snap ring. The black coated housing is constructed of sturdy steel for strength and durability in all environmental conditions. The light socket is shockproof, guaranteeing long bulb life. This light flush mounts through the three equally spaced screw holes in the housing flange. The wiring design contains the lead wires for power and is grounded through the mounting hardware.

• Red, round trailer light serves 3 functions: stop, turn, and tail light
• Black steel housing is strong and durable to withstand the elements
• Replaceable acrylic lens and bulb
• Snap ring keeps lens secure in housing
• Shockproof socket guarantees long bulb life
• Flush mounts with flange mount styling through three holes in housing flange
• Wiring design has lead wires for power and grounds through mounting hardware
• Dimensions: 5-3/8" Diam x 1-9/16" D

Manufacturer Cross Reference
Light will work as an exact replacement for:
Uni Bond # TL4300R
Truck Lite # 80334R
Grote # 50232
Peterson # 413/425

Manufacturer Specifications

Flush-mount stop, turn and tail light with acrylic lens, durable black steel housing and snap-in lens ring. Flange-mount design. Includes two-wire leads. The unit grounds through mounting hardware. Features snap-on, replaceable lens and easy to change replaceable bulb. Shockproof socket guarantees long bulb life. Rugged, all-environment steel housing.

ST-40RB 4-1/2" Round Stop, Turn and Tail Lights by Optronics, Inc.

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Do you have a question about this Trailer Lights?

• Which Wires Serve What Function on Optronics Light ST40RB
  
• The green wire is for the tail lights and the black wire is for the brakes and turn signals.
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• Troubleshooting Running Lights Circuit on a Travel Trailer Tail Light Harness
  
• Since you have tested the 4-Way connector on your vehicle and it is working properly, it leads me to believe that the wiring of the lights is incorrect. You will want to make sure that the fuse for the running lights on the vehicle is not blown. It sounds to me like the lights you have only have two wires coming out of the back for wiring to the trailer connectors wiring. If this is the case then the red wire will connect to the yellow (left) and green (right) wires on the trailer lights. The br
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• Trailer Back-Up Alarm Sounding when Brakes are Applied
  
• The back up alarm feed should be tapped into your reverse lamp lead, it sounds as if it is wired incorrectly. Each turn/brake lamp can be wired in series with a feed from your junction box, with one feed for the drivers side and another for the passenger. The same goes for your running lamps. You would take the feed for the drivers side brake/directional lamp which is usually a yellow wire, and run it along the rear of the trailer, feeding each of the two directional/brake lamps as you go. Th
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