Which Diodes of the Optronics Light Illuminate When Brakes/Running Lights Apply STL78RB
Question:
Do all of the LEDs light up for tail light function or only the 4 in the center with the outside 6 serving as brake / turn? I am interested in separate functions in order to attract greater attention when the brake lights are activated. Or, would the Glolight work better? Thanks
asked by: Matt
Expert Reply:
When the running light circuit is activated all diodes of the # STL78RB would activate. When the brake lights or blinkers are applied the outside diodes get brighter.
To see the difference check out the review video I attached.
The GloLight part # STL178RB is also a great choice. I attached a review video for this light as well for you to see the differences.

Products Referenced in This Question
GloLight LED Trailer Light w/ Flange - Brake, Tail, Turn - Submersible - Surface Mount - Oval - Red
- Trailer Lights
- Tail Lights
- Stop/Turn/Tail
- Oval
- Surface Mount
- Submersible Lights
- LED Light
- 7-1/2L x 3-5/16W Inch
- Red
- Optronics
more information >
Product Page this Question was Asked From
Optronics LED Trailer Tail Light - Stop, Turn, Tail - Submersible - 10 Diode - Oval - Red Lens
- Trailer Lights
- Tail Lights
- Stop/Turn/Tail
- Oval
- Surface Mount
- Submersible Lights
- LED Light
- 6-1/2L x 2W Inch
- Red
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: GloLight LED Trailer Light w/ Flange - Brake, Tail, Turn - Submersible - Surface Mount - Oval - Red
- Article: Trailer Wiring Diagrams
- Video: Comprehensive Review: GloLight LED Trailer Tail Light
- Video: In-Depth Review of the GloLight LED Trailer Tail Light
- Q&A: Wire Color Functions of the GloLight LED Trailer Tail Light # STL178RB
- Q&A: Cargo Trailer Lighting That Splices Into Existing Wiring
- Q&A: How to Wire the GloLight LED Trailer Tail Light Part # STL178RB to a Trailer Connector
- Q&A: Can Optronics Trailer Taillight # STL178RB be Used as Just Stop and Taillight
- Article: Trailer Lighting Requirements
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Installation Instructions For The Progressive Dynamics Pure Sine Wave Inverter w/ Transfer Switch
- Q&A: Availability of Matching Right Side to Dexter Brake 8k Assembly part # K23-532-00
- Q&A: Recommended Wiring Harness For 1976 Toyota Land Cruiser 4-Way Trailer Connection
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Article: Trailer Maintenance Schedule
- Article: Most Popular Wheel Bearings