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LED Strobe Warning Light - Function 2 - Submersible - Triple Flash - Amber - 12V/24V

LED Strobe Warning Light - Function 2 - Submersible - Triple Flash - Amber - 12V/24V

Item # SLL43AB2
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4-1/4" Round. Waterproof LED warning light with 22 diodes produces a triple-flash strobe pattern. Synchronous or alternating function. Recessed mount with grommet (sold separately). Accepts 3-prong plug. Call 800-298-1624 to order Optronics emergency vehicle lights part number SLL43AB2 or order online at Free expert support on all Optronics products. Guaranteed Lowest Price and Fastest Shipping for LED Strobe Warning Light - Function 2 - Submersible - Triple Flash - Amber - 12V/24V. Emergency Vehicle Lights reviews from real customers.
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  • Reviews (6)
  • Q & A (0)
  • Videos (1)
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Optronics Emergency Vehicle Lights - SLL43AB2

  • Hazard Light
  • Warning Light
  • Wired
  • Round
  • Recessed Mount
  • Optronics
  • Amber
  • LED
  • 1 Flash Pattern

4-1/4" Round. Waterproof LED warning light with 22 diodes produces a triple-flash strobe pattern. Synchronous or alternating function. Recessed mount with grommet (sold separately). Accepts 3-prong plug.


  • Round LED warning light provides a triple-flash strobe pattern to alert other drivers to your presence
    • Pair with an additional Function-2 light (sold separately) for synchronous flash
    • Pair with a Function-1 light (SLL43AB1 - sold separately) light for alternating flash
  • Sonically sealed, waterproof housing and lens unit is submersible
  • LEDs make great replacements for incandescent lights
    • Last 50 times longer
    • More efficient - provide brighter light with less power output
    • No bulbs to replace - no brittle filaments
  • Durable polycarbonate lens and housing
  • Compatible with 12V and 24V DC systems
  • Recessed mount with grommet (sold separtely)
    • Requires 3-3/8" diameter cutout
  • Accepts industry standard 3-prong plug (sold separately)
  • Meets SAE J595 and J845 standards for Class 2 and Class 3 directional warning lamps


  • Dimensions: 4-1/4" diameter x 1-3/4" thick
  • Diodes: 22
  • Power draw at 12V: 0.448 amps
  • Operating voltage: 9V - 30V
  • Limited lifetime warranty on LEDs

Optronics SLL43AB2 Sealed LED Warning Lamp Diagram

SLL43AB2 Optronics LED Strobe Warning Light - Function 2 - Waterproof - Triple Flash - Amber - Round - 12V/24V

Alternate part number: SLL-43AB2

California residents: click here

Video of LED Strobe Warning Light - Function 2 - Submersible - Triple Flash - Amber - 12V/24V

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics Emergency Supplies - Warning Lights - SLL43AB2 Review

Today, were going to review part number SLL43AB2, this is the Optronics 4 inch round dual flash LED warning light. This light is an Amber 4 inch round strobing dual flash warning light. It's great replacement for incandescent lights because there are no bulbs to replace, no brittle filaments to break. It uses a sealed housing lens and it is a grommet mount. The grommet would be sold separately. It Does have 22 amber LEDs, and the LED light draw on this light is an Access point 448 amps at 12.8 volts.

This will work with 12 volt and 24 volt systems. It is DOT approved and there is a life time warranty on the LEDs. Now this light is a function 2 light, which is stamped on the back. When this is used with a function one light and then wired together it would give you an alternating flash. In other words, when this one would flash then the other function one light would flash and then go back and forth, so that it would be alternating.

This does Use a Three-wire pigtail plug for the wiring, which is sold separately. This one here is part number A45PB. I am going to hook it up and basically show you what the light would look like and how it flashes. So, if we just plug in the three prong wiring and I have a power supply right here, grounded. That would basically show you the dual flashing pattern.

Now, what I am going to do is take a function one light; it is stamped on the back function one. Basically, we do the white for the ground, the black we would connect together and then on the red, that would show you the alternating flashing pattern when you wire a Function two with a function one. That should do it for the review on Part number SLL43AB2. FoxTranscribeSteuart Tower, 1 Market St, Ste 500, San Francisco, CA 94105t: 800-225-6124, [email protected] .

Customer Reviews

LED Strobe Warning Light - Function 2 - Submersible - Triple Flash - Amber - 12V/24V - SLL43AB2

Average Customer Rating:  4.3 out of 5 stars   (6 Customer Reviews)

4-1/4" Round. Waterproof LED warning light with 22 diodes produces a triple-flash strobe pattern. Synchronous or alternating function. Recessed mount with grommet (sold separately). Accepts 3-prong plug.

- SLL43AB2

i did not receive the rubber grommets please follow up thank you I've ordered from you before and have been very happy with your service

- SLL43AB2

Great products, fast shipping, great customer service. product videos are helpful too.

- SLL43AB2

- SLL43AB2

great product

- SLL43AB2

- SLL43AB2


Ask the Experts about this Optronics Emergency Vehicle Lights

  • Are There LED Strobe Lights Available In Round Style Light
    Yes, we have round LED strobe lights available that are similar to the LED Amber Quad Flash Kit, part # CPL65A-STR. For round LED strobe lights, we have the Optronics Triple Flash LED Warning Light, part # SLL43AB1, and the Optronics Triple Flash LED Warning Light, part # SLL43AB2. Checkout the short video I produced for you that shows the functionality of these LED strobe lights.
    view full answer...
  • Is the LED Amber Quad Flash Warning Light Kit Available with Round Style Lights
    No, the LED Amber Quad Flash Kit, # CPL65A-STR, is no longer available in round style. We also have the Sealed, 4 inch Round, Triple Flash LED Warning Lights, # SLL43AB1 and # SLL43AB2, if; you are looking for warning lights that strobe. Two lights are needed and if you want them to alternate you will need 1 each of the function 1 light and the function 2 light. We have a video showing the Oval LED warning lights in use, see link.
    view full answer...
  • Flashing Amber Warning Light for Agricultural Equipment
    For an amber agricultural light I recommend # W8260601 which was designed for this purpose. You could add # W002515 to wire it up. We also have amber flashing warning lights like # SLL43AB1 and # SLL43AB2 that can be wired to flash alternately. You would also need harness # A45PB for each and a grommet to mount them # A45GB. I have included a video review of these lights for you. The Optronics light # STL51AB you referenced is designed as a parking and turn signal light rather than a...
    view full answer...
  • Recommended Warning Light with Ability to View Front and Back
    The Sealed, 4" Round, Double Flash LED Warning Light, 22 Diode - Amber # SLL43AB1 and # SLL43AB2 are the only warning lights we have of that style and they are not double face as you mentioned. We don't have any that are double faced warning lights, but we do have other options that will allow viewing from both sides. The closest to the size/style you are looking for is the Custer Adjustable Emergency Light w/ Magnetic Base - LED - Amber # HF18A-MB but this is only single sided, so...
    view full answer...
  • 24 Volt Trailer Light Availability
    The Light Assembly part # TLL28RK that you referenced is only compatible with 12 volt circuits. We have a couple trailer lights that are compatible with 24 volt circuits though. Check out the part # STL23R24B, # STL90R24B, # MCL55R1224B, or # SLL43AB2.
    view full answer...

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T
Employee Carrie F
Updated by:
Carrie F

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