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Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens

Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens

Item # MCL48AB
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Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens Rear Clearance,Side Marker MCL48AB
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6" x 2-1/4" Rectangle. Waterproof trailer light functions as both a side marker light and turn signal. Amber polycarbonate lens. 16 LEDs. Surface mount on 4-13/16" centers - hardware not included. 3-Wire pigtail. P2 rated. Lowest Prices for the best trailer lights from Optronics. Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens part number MCL48AB can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (1074)
  • Q & A (12)
  • Photos
  • Why etrailer?

Optronics Trailer Lights - MCL48AB

  • Clearance Lights
  • Rectangle
  • LED Light
  • Amber
  • Surface Mount
  • 6-1/2L x 2W Inch
  • Optronics
  • Submersible Lights
  • Rear Clearance
  • Side Marker

6" x 2-1/4" Rectangle. Waterproof trailer light functions as both a side marker light and turn signal. Amber polycarbonate lens. 16 LEDs. Surface mount on 4-13/16" centers - hardware not included. 3-Wire pigtail. P2 rated.


  • Rectangular trailer light serves 2 functions
    • Side marker or clearance light
    • Mid-ship turn signal light
  • Sonically sealed, waterproof housing and lens unit is submersible
  • Miro-Flex faceted reflector design provides increased light output with a contemporary appearance
  • 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
  • Amber lens
  • Polycarbonate lens and housing
  • Mounts to surface of trailer - hardware not included
  • 3-Wire pigtail
  • P2 rated


  • Dimensions: 6" long x 2-1/4" tall x 1-3/8" deep
  • Mounting hole dimensions (center to center): 4-13/16"
  • Diodes: 16
  • Power draw at 12.8 volts:
    • Turn signal light: 0.248 amps
    • Side marker light: 0.074 amps
  • Lifetime warranty on LEDs

Optronics Light Dimensions

Sonically Sealed, Waterproof Trailer Light

The waterproof construction of this light makes it ideal for use on trailers that may be submerged, like a boat trailer. The housing and lens are sonically sealed together to create a single unit, which means that water will not get into the light and damage the diodes or circuit board.

P2-Rated or P3-Rated Lights

Diagram of light spread for P2 rated light

A P2-rated or P3-rated light produces a 45-degree angle of light to either side of its centerline for a total of 90 degrees of coverage. This beam pattern can be seen straight on, but it cannot be seen clearly from the side. So this type of light can be used as either a side marker light or a clearance light, but it cannot function as both. If you need both functions, then you must install 2 separate lights on your trailer - one as a front or rear clearance light and one as a side marker light.

MCL48AB Optronics Mid-Ship Turn Signal and Side Marker/Clearance Trailer Taillight - P2 Rated - Amber Lens

California residents: click here

Customer Reviews

Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal - Submersible - Amber Lens - MCL48AB

Average Customer Rating:  4.9 out of 5 stars   (1072 Customer Reviews)

6" x 2-1/4" Rectangle. Waterproof trailer light functions as both a side marker light and turn signal. Amber polycarbonate lens. 16 LEDs. Surface mount on 4-13/16" centers - hardware not included. 3-Wire pigtail. P2 rated.


These lights are great! Since installing them, I am amazed how much respect my rig gets. Other motorists used to give me space when I used by turn signals. Now they immediately yield to me and give me the space I need. I am so grateful that I invested in these lights!!! 698433


From the web site they look like what I wanted. When you trailer gets here I will be putting them on. 884730


Was very satisfied with shipping and pr oduct 867603


Great product. Easy to install and very bright. 769924


fast service, was needed for a coach we had in the shop 728119


Received product overnite. Needed wiring diagram but figured it out installed it little short for what it was but it worked fine 696208


Very happy with my new lights 695770


Great for lighting up my car hauler 667522


I've used etrailer on numerous times and generally avoid these reviews, but they are a very solid good helpful organization to deal with. This is a small order compared to 3 years of past orders. Save yourself some time and trouble and just buy from them. You'll be pleased at the service. 645141


great product. packaged well and works great. 608415


Perfect replacement light for my applic ation. 601237


I have purchased 4 of these from of you. None of these have been installed as of present. Other that quick delivery I have no comment on this item. Thanks, Dennis 587776


Great light would buy again 587709




I am using this light as a side clearance and turn indicator. The LEDs are bright enough in day light to be seen clearly. I recommend this light highly. 554743


Got just what I ordered . 552134


Exactly what I ordered, fit perfectly, and was delivered when promised. 505327

Works as it should and if I break another one this is the light I will buy again.
Victor - 05/07/2019



Works just like I wanted. Marker light and turn signal for the front of our RV which had no side turn signals when we bought it. Looks good too. 501672


Needed a side/turn signal on my 5th wheel RV. I installed this light and it works great. 491508


I order 2 LED side marker lights, 2 chrome bezels and a utility light for my RV. I received the items within 4 days of placing my order and am very happy with the items so far. I have not yet tried to install the items but I am certain they will go together as planned. Everyone at etrailer was professional and communicated well at each step of the order and delivery process. I will recommend eTrailer to all my RV friends if they ever need parts. Thanks to everyone for making this a good experience. 483651


These are the FINEST QUALITY markers I've ever seen. I've replaced many on 3 RVs and nothing touches these for quality even at much higher price!!!! Where are the red ones????? The discription measurements are incorrect though, my ruler measures overall 5 5/8", not 6", which is actually better for my install. The website filter has them incorrectly at 7". 451155


It is working great was an excellent choice,thanks for asking 352056




I really like these LED Lights. Very bright with crisp light patterns. 338707


Very happy with this product I purchased these to replace some of the lights on my trailer and they work wonderful. very pleased with this purchase. Would recommend and purchase again in the future. 305050

Show More Reviews

Ask the Experts about this Optronics Trailer Lights

  • Availability of Side Marker and Turn Signal Clearance Lights for Side of 5th Wheel Trailer
    We actually have a few different options for exactly what you are wanting to do. Just choose which one you want based off of the style of the light itself! Miro-Flex LED - # MCL48AB Optronics LED - # MCL32ATB Optronics LED Mid-Ship - # STL75AB GloLight LED Mid-Ship - # STL175AMFB Each of these options functions as a clearance light as well as a side marker light plus they are not recess mounted so they will stick out some. I have attached review videos that you can check out for...
    view full answer...
  • Wiring Optronics Mid-Ship Trailer Light to Function Only as Turn Signal
    In order to wire the Optronics Micro-Flex LED Mid-Ship Light # MCL48AB that you referenced so that it only functions as a turn signal light, you will just need to add a converter like the Curt # C56196 to separate the turn signal from the brake circuit. The yellow wire on the converter input side will tap into the left turn signal circuit on the trailer, while the green wire will tap into the right turn signal circuit. Then on the output side the yellow wire will go to the Mid-Ship light...
    view full answer...
  • Rectangle LED Clearance Light with Both Red and Amber Lenses
    I do have an option for you but the Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal is not offered with a red lens, only amber part # MCL48AB and clear part # MCL48CAB. For a similar clearance light has turn signal capabilities I recommend the Peterson Piranha LED Trailer Clearance and Side Marker Light w/ Supplemental Turn part # M353R which if you wanted to use this instead is also offered in amber as part # M353A.
    view full answer...
  • Amber Clearance Light Recommendation Similar In Size to Glo-Brite 410X
    Based on dimensions alone the closest we have to your GloBrite 410X is the Miro-Flex LED Trailer Light part # MCL48AB which is 6" x 2-1/4".
    view full answer...
  • How Would Clearance Lights Get Ran As Additional Turn Signals
    Your trailer would have to be wired up with separate turn signals from the brake lights to be able to use the part # MCL48AB as a turn signal. Most trailers are wired for having the two circuits carried on the same wires. To separate the circuits you would need to use the part # RM-732 which would wire to your trailers turn signal circuits and would give you the ability to have both circuits separated. Now to use your current combined trailer taillights like normal you would have...
    view full answer...
  • What Trailer Light Functions Does Trailer Clearance and Side Marker Light # MCL48AB Have
    The Trailer Clearance and Side Marker Light # MCL48AB uses a three wire setup which means that the light has two light intensities. A lower intensity for the running light circuit and a brighter intensity that will come on when the brakes or turn signal is activated. The headlights do not need to be on for the blinker to work. I attached a review video for more info on this as well.
    view full answer...
  • How Does MiroFLEX LED Trailer Light part # MCL48AB Wire to be a Turn Signal and Running Light
    Yes, you are absolutely correct. To wire up the Miro-Flex LED Trailer Side Marker Light # MCL48AB to work as a blinker and running light you would need to run the stop/turn signal wires to the red wires, the running lights to the black wires and the ground to the white and it will work like it is supposed to.
    view full answer...
  • Recommendation For LED Replacement Lights That Are Bright And Waterproof
    I do not know exactly how they will compare to your existing lights brightness. However, many of our customers who have replaced their single bulb lights love the Miro-Flex LED Trailer Side Marker Light, Item # MCL48AB. Many customers have commented how nice and bright they are as well as waterproof. I highly recommend them and believe you will be impressed by their toughness, brightness, and overall look. I am attaching a video for you to check out to give you a better idea about...
    view full answer...
  • Can Amber Light be Used as Turn Signal on Motorcycle Trailer?
    The Miro-Flex LED Turn Signal # MCL48AB can be used as an amber turn signal with your motorcycle trailer. It will work alongside the tail lights you referenced, Aero Pro - LH # STL37RPG and Aero Pro - RH # STL36RB, with the wiring you already have on your trailer. I've added links to review videos of these products for you to check out as well.
    view full answer...
  • Functions of Wire Colors on Miro-Flex Clearance Light part # MCL48AB
    For the Miro-Flex part # MCL48AB the white wire is ground, the red wire is stop/turn, and the black wire is the running light circuit.
    view full answer...
  • Availability of Submersible Amber Clearance Light that Does Not Require Sealing
    There really isn't an effective way we can recommend to water proof the # 425600 that you referenced. You can try sealing it but since this is not a light that's considered submersible it's not guaranteed you wouldn't have problems. Better option is a light that is submersible like the # MCL48AB which does not require any additional sealing. I also attached a link to a page that has all of the amber sumbersible clearance lights we offer as well.
    view full answer...
  • Tail Light Converter to Separate Trailer Stop and Turn Lights With Mid-Ship Trailer Light
    In order to add a mid-turn (also called a Mid-Ship) light such as the Miro-Flex LED Trailer Side Marker Light and Mid-Ship Turn Signal # MCL48AB to your boat trailer you will need to use a converter. The converter you should use is the Curt # C56196 instead of the Tow Ready you referenced because the Curt is compatible with LED lights while the Tow Ready is not. To do this you will need to connect the yellow and green turn signal wires on your trailer to the input side of the converter...
    view full answer...

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Info for this part was:

Written by:
Tricia G
Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Amy B
Updated by:
Sarah W
Updated by:
Brian T

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