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: 



4.9 out of 5 stars (18 Customer Reviews)




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: 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




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
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very nice easy to mount..looks great and performs well4149
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