Installation of Optronics Sealed, 6-1/2 Inch Oval LED Trailer Stop, Turn, and Tail Light

Question

Question:

I brought the sealed 61/2inch oval trailer lights but nothing came with them tell me how to install them.

asked by: Milton A

0

Expert Reply:

Thank you for your purchase from etrailer.com! The Optronics Sealed, 6-1/2 Inch Oval LED Trailer Stop, Turn, and Taillight # STL78RB that you purchased will need to be hardwire installed on your trailer.

You will want to connect the light to your trailer's wiring by function. You can use a circuit tester, like # PTW2993, to determine the functions of your trailer wiring. The white wire on the light will need to be grounded. I recommend running the light ground back to the main trailer ground. The red wire on the light will need to connect to the turn signal and brake light wire on your trailer. The black wire on the light will connect to the running light wire on your trailer. The light will connect to your trailer's wiring with butt connectors, like # 05731-5.

The # STL78RB light is a flange mount light with 4 mounting holes in the center of each side, spaced 7 inches apart lengthwise and 2-3/4 inches apart widthwise. I have attached a photo showing these mounting dimensions for you. I have linked a video showing the installation of this light on an enclosed trailer for you.

I also noticed that you purchased the Trailer Light Mounting Bracket # BK70BB, the PVC Grommet for 6-1/2 Inch Oval Trailer Taillights # A70GB, and the 3-Wire Pigtail # A45PB. These components are not necessary to install the # STL78RB light, but are needed when installing a light like the Optronics Trailer Taillight # STL72RB. This light is a recessed mount light that installs using a grommet. I have also linked an installation video of this trailer light for you.

expert reply by: Victoria B

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Bob W.

1/23/2020

I put a new oval light on my covered snowmobile trailer the blinker wont work but when I put the flashers on it blinks HELP

Reply

Jason S.

1/23/2020

It sounds like it is a ground issue on your light. Some functions have more power delivered and that can overcome a week ground. Make sure you have a clean metal to metal connection at your ground free of corrosion, debris, even paint or powder coat. I recommend using sand paper even if it looks clean to ensure connection. You can use dielectric grease like # LT37534 to keep corrosion away from that bare metal. If your trailer is aluminum, then you may need to add a jump wire to another location to provide a better ground.

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Answer 1

Since trailers come in different sizes and lights are used for different things, not all oval trailer lights are the same size. For example, the Optronics Trailer Tail Light #STL68RB is 10" Long x 3" Wide whereas the Optronics Trailer Tail…

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Answer 2

Hey Nancy, I took a look at your 2020 Showstar Cimarron trailer and it does look like yes the Optronics Fleet LED Trailer Tail Lights w/ Grommets #TLL12RK will work fine to replace your old tail lights. The only thing you're going to want to…

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Answer 3

No, I am sorry Randy there is not. The Optronics LED Trailer Tail Light item #STL78RB has a built in flange but we do not have a gasket for it.

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Answer 4

I'd be more than happy to help you out, Herb! A common light kit for boat trailers is the Optronics Fleet LED Trailer Tail Lights w/ Grommets #TLL12RK which measure 6-1/2" long x 2-5/16" tall for the light face and are submersible.…

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Answer 5

I do have a solution that should work for you, but we do not carry any Optronics lights with the style connector you have. You could get a Optronics Trailer Light #STL78RB that you referenced, and to install it you would just want to cut of the…

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Answer 6

Although the Snap-on Reflector Ring, #A78RXB, will not fit the STL178 series lights like the Optronics GLOLight LED Stop/Turn/Tail Light #STL178RFPB, I do have a solution for you. Take a look at the Sealed, 6-1/2" Oval LED Trailer Stop, Turn and…

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Answer 7

The #STL22CCRB lamp you referred to is typically mounted in a grommet, like part #A70GB, which in turn is mounted in a bracket like part #337LB1SS. If you were planning on cutting a hole to mount the lamp and grommet, the hole will need to measure…

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Answer 8

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 9

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 10

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 11

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 12

Since both a ST145/R12 size tire, like the Kenda Karrier S-Trail #AM10130, and a 5.30-12 size tire, like the Kenda K353 #AM10068, fit a 12 inch wheel, a ST145/R12 size tire can replace a 5.30-12 size tire. Keep in mind that these tires do have…

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Installation of Optronics Sealed, 6-1/2 Inch Oval LED Trailer Stop, Turn, and Tail Light

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