Optronics Trailer Tail Light - Stop, Turn, Tail - Round - Grey Flange - Red Lens

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• Is there a Trailer Tail Light that Matches Peterson Back Up Light # 411SC
  We do not have an exact match for a red round tail light like the Peterson Back Up Light, # 411SC, that you have referenced that is a flange mount. The closest flange mounted lights are going to be the Peterson round tail lights # 431800 and # 432000. For a flush mounted light, you could use # 429800 which may be more what you are looking for. We also have the Optronics brand flange mounts # STL42RB or # ST47RB. They use wiring harness # A45PB.
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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....
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• Hole Size Needed to Install the Optronics Sealed 4 Inch Round Trailer Light # ST47RB
  I pulled the Optronics Sealed 4 Inch Round Trailer Light, # ST47RB, from the warehouse and measured the diameter of the light housing that will be recessed in the trailer. It measures 4.44 inches in diameter so a 4-1/2 inch hole should be fine. I spoke with my contact at Optronics and they do not recommend a specific hole diameter for this light, but most flange and flush mounted 4 inch lights require a 4-1/2 inch diameter hole.
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• Troubleshooting LED Trailer Light Issues Only When Connected to Motorhome
  Because you know the trailer works correctly when connected to your Ram, the issue is likely in the connection between your Motorhome and trailer. The way you describe your motorhome impacting your trailer lights in different stages of being on and off etc, leads me to think because your trailer has LED's you will need load resistors as not enough power is being drawn at the trailer connection. My recommendation is to simply use the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass...
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• How to Replace Bulbs in ST47RB Optronics Incandescent Trailer Stop/Turn/Taillight
  The housing of the Optronics # ST47RB lamp is held together by two screws that are accessed from the rear of the lamp housing. Once the screws are removed, the lens can be removed from the housing and the 1157 bulb, part # DI79VR can be replaced. An LED version is available as part # M824R. The LED lamp uses less power, will be much brighter and will last up to 50 times longer than a comparable incandescent lamp.
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• Testing LED Trailer Lights Using an External 12 Volt Power Source
  You should be able to ground the white wire and apply 12 volt power to one of the other wires and get the light to illuminate. If the ground is not sufficient, the lights will not light up. If the power source is not putting out 12 volts or requires a certain amount of load before it will allow power through the lights might not work. The back of the light housing normally indicates the function of each wire. One method you can try is to use a car battery, attach the ground wire to the...
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• Does Trailer Get Ground For Lights From Hitch Ball On Vehicle?
  You do not need to have the trailer hitched to your vehicle as the ground for the trailer is actually one of the pins of the 4-way connector. Since the new lights are not functioning I recommend double checking that all of the wiring connections made are secure and one did not come loose and that the main ground to the trailer tongue is secure. If your trailer has an aluminum frame or a tilting bed you will want to run all of the ground wires from the lights to the main ground on the tongue. Second...
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• Left Side Trailer Lights Not Working on Multiple Trailers Being Towed By 2007 Ford F-150
  On your 2007 Ford F-150 I would start by checking the relay fuse box located under the right hand side of the instrument panel inside the cab. There are two 10 amp fuses in the box that protect the trailer towing lights. The fuse at location number 36 is for the right side lights and the fuse at location number 42 is for the left side lights. I would also recommend to check your owners manual to determine if you are missing any other fuses or relays that are required for towing a trailer....
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