Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
7-9/16" L x 3-5/16" W x 3/4" D; FMVSS 108 approved; sealed, waterproof; corrosion resistant; flange mount on 7" and 2-3/4" centers; 3-wire; 10 super diode LEDs
This is a sealed, oval LED combination stop, turn, and tail light. The LEDs in this light are super diodes for exceptional brightness and performance. This red light measures 7-9/16" long x 3-5/16" wide x 3/4" deep. This light meets FMVSS 108 * requirements in any 360 degree position. Lens and housing are one unit that is sonically sealed and waterproof, providing protection to the 10 super light-emitting diodes. The molded plastic housing and durable lens provide all-weather protection against corrosion. The light draws 0.243/.046 amps at 12.8 volts. This light flange mounts through the four mounting holes in the center of each side, centered on 7" lengthwise and 2-3/4" widthwise. The three-wire design includes the lead wires for power and a ground wire for mounting to any surface.
* Federal Motor Vehicles Safety Standards 108
Sealed, flange mount, red LED stop, turn and tail light. 10 super diodes for bright, dependable performance. Meets DOT FMVSS 108 requirements in any 360 degree position. Surface mount unit does not require panel cutout. Features sonically sealed, waterproof lens and housing in a single unit. All-weather, molded plastic housing and durable lens protect against corrosion. Separate ground wire.

Video of Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today were looking at the Optronics Sealed, 6-1/2 inches Oval LED Trailer Stop, Turn and Tail Light. This light functions as a stop, turn, and tail light. It has a sealed waterproof housing and lens unit. It has 10 Super LEDs or light emitting diodes. The red wire functions as a turn or brake light, the black is our tail light, and the white is our ground.
This light draws .243 amps at 12.8 volts. Lets go ahead and hook up a power supply so we can see what it looks like lit up. Well hook up the red wire which is our turn signal or stop light, the black wire is our running light, and the white wire is our ground. Theres our blinker and brake light function. Now well go ahead and turn off the overhead light so you can see what it looks like at night. And there you have it for the Optronics Sealed, 6-1/2 inches Oval LED Trailer Stop, Turn and Tail Light, part number STL78RB.
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Average Customer Rating: 



4.8 out of 5 stars (34 Customer Reviews)




by: Stephen D06/07/2013
Is this review helpful?
Great. Very bright 83658




by: billy04/12/2013
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it was just what i ordered, and was it was here on time. I would recommend e-trailer to anyone. thank you very much. BILLY ALLEN75680




by: Michelle03/17/2013
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Good product, great service, nice price 71248




by: Tim G.02/24/2013
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Timely shipping. Well packaged. Very bright lights and easy to install.67604




by: THOMAS02/05/2013
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What I expected. Good service and delevery. Will use service again. Pleasure dealing with you. Thomas65105




by: Randall01/16/2013
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Product came as advertised. No complai nts!!63285




by: Don M.09/23/2012
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Now that I'm finishing up on my Teardrop Trailer I've got these lights installed, along with a LED tag holder, and LED marker lights. I had also bought the fenders from etrailer they look great, and I get a lot of comments how good all these parts look. Oh and the prices are better then any place I could find.......Thanks etrailer 55571




by: david09/02/2012
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lights look great - price was great - love the LED - shipping amazing thanks53791




by: RICHARD07/21/2012
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HAVE USED THEM ON MY LAST TRAILER AND THEY WORK GREAT. SORRY TO SAY THE NEW ONES WERE NOT IN GOOD SHAPE. BUT IM SURE IT WILL BE TAKEN CARE OF.48810




by: Tom H06/14/2012
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Shipped fast and every thing was as expected. Great service. Woulddeal with this company any time.44141




by: Dennis06/13/2012
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Received lights promptly and look great on the four place jet ski trailer I just built. Thank you43931




by: Steve M.06/11/2012
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Everything arrived packed in box very nice. Your service was quick. I really appreciated that you took the time to keep me updated on the shipment. It is really nice that you have the section with wiring diagrams. It might seem like a small thing but it sped things up for me as I did rely on it a few times. Your prices and products were great. I would say you have a lot of pride in your company. The next time I need trailer parts I will definetly order from you. Thanks again, Steve M. 43771




by: T06/11/2012
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All I can say is that E-Trailer.com will get all my future business, the staff is very nice and helpful, the prices are great and I received everything in 2 days. All items were as described.43694




by: John04/25/2012
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These are replacement lights on my trailer. 38274




by: Mike s04/09/2012
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Great sevice shipping time was also gre at36627




by: Joe V.02/10/2012
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Nice products, good prices. Wsa shipped right out, but took forever it seemed to get here. Very well packaged. I am building a 1/2 scale teardrop trailer to pull behind my motorcycle. Just getting started.31431




by: Mark Lockwood01/24/2012
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This is a very nice light, well built and is very bright. 30245




by: C. Palmer12/23/2011
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I bought this lot for a retro-fit. The light is a good option for a surface mount application.28653




by: Paul B12/16/2011
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Lights received on time in perfect condition. I used them on the back of my CRV as toad lighting. They look great when on and aren't noticeable when off.28203




by: Rut T.11/08/2011
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Nice flush mount. No drilling. Just bolt on as description. Love the LED brightness. 26726




by: Rickey R.07/17/2011
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I like the life span 19551




by: George M07/09/2011
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This sealed light came very quickly with just the standard delivery option. Was extremely easy to replace my factory installed light. Thanks so much etrailer!19002




by: dean06/30/2011
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I replaced a oval led light and identification light bar on my rnr trailer. I received the parts fast and the install was fast and easy. Parts fit properly for my trailer. Will order from etrailer again. Thanks for the fast ship. 18304




by: Mike Giangrande05/27/2011
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Great just what I ordered!! Thanks 15552




by: jim b.05/26/2011
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awsome, great lead time 15444




by: Armando A.05/23/2011
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I have made a special bookmark for e trailer I love this website. It has everything you probably can think of for your trailer needs!!!15187




by: Phil05/18/2011
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These will work perfectly and the chrome trim ring really dresses them up. Great product!14672




by: Tonya05/17/2011
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GREAT lights! There is also a wiring map on the back of the lights to tell you which wire goes to what!!!!! Helped a lot!!!!14609




by: Tom C.05/11/2011
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They worked great on my jeep! 13360




by: Byron F05/10/2011
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Great LED taillight for the price, can't beat it.13260




by: wpwedlake03/01/2011
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The quality of the merchandise is excellent, both in appearance and from an operational perspective. I especially appreciate the responsiveness of etrailer order processing. Overall, purchasing from etrailer has been a very positive experience.8149




by: chuck02/02/2011
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Ordered all new lights, grommets, wires, etc for a boat trailer on Sunday, received all the parts I ordered in one package on wednesday using standard shipping. Everything arrive ok and looks good. Haven't installed yet, but the service was great.6531




by: Matt W.12/15/2010
Is this review helpful?
very nice easy to mount..looks great and performs well4149




by: DavidD09/30/2011
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These lights are what i have come to expect from etrailer. This is why I order all my traier parts from them. The lights are very bright,, good value for the money, easy installation. GREAT SERVICE TOO!24892
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