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  • LED RV Retrofit Bulbs
    • *Elite Series*
    • Single Contact Round Bases
      • Small 9mm (3/8") BA9s Base
      • Std 15mm (5/8") BA15s Base
    • Double Contact Round LED Lights
    • Wedge Based LED Lights
      • Micro Size to Replace 194, 168
      • Std Size to replace 912, 921
    • G4 / T3 & G6.35 Double Pin
      • G4 10w Replacements
      • G4 20w Replacements
      • G6.35 20w Replacements
    • Plate Style LED Lights
    • Festoon / Inline LED Lamps
    • Vanity Globes
    • Reading Lamps
      • 1139 1139lf
      • 1383
      • G4 Bi-Pin Halogen
      • MR11
      • MR16
    • Tube Lights
      • 12" F8T5 TL8/33
      • 14" F14T8
      • 18" F15T8
      • 21" F13T5
      • 22" F14T5
      • 24" F17T8
      • 36" F30T8 F25T8
      • 48" F32T8 F36T8
      • Round / Circular
      • Stand Alone (no fixture) 18"
    • Screw In
    • Strip Lights
    • Floodlight LED Replacement
    • Dimmers
  • Better LEDs for Factory RV LED Fixtures
  • Light Fixtures
  • RV/Trailer, Brake, & Running Lights
    • Common Tail/Clearance Bulbs
    • Complete Clearance / Marker
    • Complete Tail and Mounts
  • LED Off Road Spot, Flood & Light Bars
    • Light Bars Long and Short
    • Round and Square Lights Big and Small
    • Light Covers
    • Light Harnesses & Switches
    • Light Mounts
  • RV, Truck & Auto Headlamps & Common Bulbs
    • Headlamps
    • Common Auto Bulbs (LED)
    • Complete Dome Lights
    • Strips, Pucks, Acc Lighting
  • Color Changing RGB
  • Flashlights
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    Main Menu

  • Identify Bulbs & Bases
  • LED Color Range Choices
  • Lumens and Quality
  • Email List
  • Shipping & Returns
  • FAQs
  • Contact
  • Resources
  • Affiliate Program
  • Press: TV, Video, Articles
  • Pandemic Info
  • Gift Certificates

    • Shop By Category

  • LED RV Retrofit Bulbs
    • *Elite Series*
    • Single Contact Round Bases
      • Small 9mm (3/8") BA9s Base
      • Std 15mm (5/8") BA15s Base
    • Double Contact Round LED Lights
    • Wedge Based LED Lights
      • Micro Size to Replace 194, 168
      • Std Size to replace 912, 921
    • G4 / T3 & G6.35 Double Pin
      • G4 10w Replacements
      • G4 20w Replacements
      • G6.35 20w Replacements
    • Plate Style LED Lights
    • Festoon / Inline LED Lamps
    • Vanity Globes
    • Reading Lamps
      • 1139 1139lf
      • 1383
      • G4 Bi-Pin Halogen
      • MR11
      • MR16
    • Tube Lights
      • 12" F8T5 TL8/33
      • 14" F14T8
      • 18" F15T8
      • 21" F13T5
      • 22" F14T5
      • 24" F17T8
      • 36" F30T8 F25T8
      • 48" F32T8 F36T8
      • Round / Circular
      • Stand Alone (no fixture) 18"
    • Screw In
    • Strip Lights
    • Floodlight LED Replacement
    • Dimmers
  • Better LEDs for Factory RV LED Fixtures
  • Light Fixtures
  • RV/Trailer, Brake, & Running Lights
    • Common Tail/Clearance Bulbs
    • Complete Clearance / Marker
    • Complete Tail and Mounts
  • LED Off Road Spot, Flood & Light Bars
    • Light Bars Long and Short
    • Round and Square Lights Big and Small
    • Light Covers
    • Light Harnesses & Switches
    • Light Mounts
  • RV, Truck & Auto Headlamps & Common Bulbs
    • Headlamps
    • Common Auto Bulbs (LED)
    • Complete Dome Lights
    • Strips, Pucks, Acc Lighting
  • Color Changing RGB
  • Flashlights
  • 120v AC Products
  • Standard RV Supplies
    • Electrical
    • Plumbing
    • Roof
  • Landscape Lighting
  • T-Shirts, Koozies, & More
  • Sale Items / Coupons
  • Gift Certificates
  • Login or Sign Up

Shop by Category

  • LED RV Retrofit Bulbs
    • *Elite Series*
    • Single Contact Round Bases
      • Small 9mm (3/8") BA9s Base
      • Std 15mm (5/8") BA15s Base
    • Double Contact Round LED Lights
    • Wedge Based LED Lights
      • Micro Size to Replace 194, 168
      • Std Size to replace 912, 921
    • G4 / T3 & G6.35 Double Pin
      • G4 10w Replacements
      • G4 20w Replacements
      • G6.35 20w Replacements
    • Plate Style LED Lights
    • Festoon / Inline LED Lamps
    • Vanity Globes
    • Reading Lamps
      • 1139 1139lf
      • 1383
      • G4 Bi-Pin Halogen
      • MR11
      • MR16
    • Tube Lights
      • 12" F8T5 TL8/33
      • 14" F14T8
      • 18" F15T8
      • 21" F13T5
      • 22" F14T5
      • 24" F17T8
      • 36" F30T8 F25T8
      • 48" F32T8 F36T8
      • Round / Circular
      • Stand Alone (no fixture) 18"
    • Screw In
    • Strip Lights
    • Floodlight LED Replacement
    • Dimmers
  • Better LEDs for Factory RV LED Fixtures
  • Light Fixtures
  • RV/Trailer, Brake, & Running Lights
    • Common Tail/Clearance Bulbs
    • Complete Clearance / Marker
    • Complete Tail and Mounts
  • LED Off Road Spot, Flood & Light Bars
    • Light Bars Long and Short
    • Round and Square Lights Big and Small
    • Light Covers
    • Light Harnesses & Switches
    • Light Mounts
  • RV, Truck & Auto Headlamps & Common Bulbs
    • Headlamps
    • Common Auto Bulbs (LED)
    • Complete Dome Lights
    • Strips, Pucks, Acc Lighting
  • Color Changing RGB
  • Flashlights
  • 120v AC Products
  • Standard RV Supplies
    • Electrical
    • Plumbing
    • Roof
  • Landscape Lighting
  • T-Shirts, Koozies, & More
  • Sale Items / Coupons

    • Shop by Brand

  • View all Brands

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    Free Standard Shipping on orders over $60.00.  We generally ship all orders received before 2:30pm PST the same day (shipping Monday through Friday, Postal Holidays excluded). Our Warehouse is shipping as usual.  More Information related to the Pandemic is here.

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    Featured Products

    • T8-STANDALONE-NW Natural White Self Contained 18" T8 LED Tube Light 12v 4500k Includes two clips. Screw clips to mounting surface, and snap tube light into clips. T8-STANDALONE-NW Natural White Self Contained 18" T8 LED Tube Light 12v 4500k Includes two clips. Screw clips to mounting surface, and snap tube light into clips.
      Quick view Details

      sku: T8-STANDALONE-18-NW

      T8-STANDALONE-NW Natural White Self Contained 18" T8 LED Tube Light 12v 4500k

      MSRP: $34.99
      Now: $24.99
      Add to Cart
    • SALE
      Home or RV LV-CL-3WA2-CW 120v Cool White Screw in Vanity Globe with Mini E12 Base Home or RV LV-CL-3WA2-CW 120v Cool White Screw in Vanity Globe with Mini E12 Base Home or RV LV-CL-3WA2-CW 120v Cool White Screw in Vanity Globe with Mini E12 Base Home or RV LV-CL-3WA2-CW 120v Cool White Screw in Vanity Globe with Mini E12 Base
      Quick view Details

      sku: LV-CL-3WA2-CW

      Home or RV LV-CL-3WA2-CW 120v Cool White Screw in Vanity Globe with Mini E12 Base

      MSRP:
      Was: $15.99
      Now: $12.99
      Add to Cart
    • SALE
      10% Off Trailer Single Tail Light with Bright LEDs - Jeep, Utility 10% Off Trailer Single Tail Light with Bright LEDs - Jeep, Utility 10% Off Trailer Single Tail Light with Bright LEDs - Jeep, Utility 10% Off Trailer Single Tail Light with Bright LEDs - Jeep, Utility
      Quick view Details

      sku: TAIL-SQUARECOMBO

      10% Off Trailer Single Tail Light with Bright LEDs - Jeep, Utility

      MSRP:
      Was: $18.99
      Now: $17.09
      Add to Cart
    • UT-W0105B 10 watt Flush Mount Flood / Backup Lamp UT-W0105B 10 watt Flush Mount Flood / Backup Lamp UT-W0105B 10 watt Flush Mount Flood / Backup Lamp UT-W0105B 10 watt Flush Mount Flood / Backup Lamp
      Quick view Details

      sku: UT-W0105B

      UT-W0105B 10 watt Flush Mount Flood / Backup Lamp

      MSRP:
      Now: $19.99
      Add to Cart

    New Products

    • NEBO Poppy Pop Up Lantern NEBO Poppy Pop Up Lantern NEBO Poppy Pop Up Lantern NEBO Poppy Pop Up Lantern
      Quick view Details

      sku: NEBO-POPPY

      NEBO Poppy Pop Up Lantern

      MSRP:
      Now: $29.99
      Add to Cart
    • NEBO Bucket Flashlight NEBO Bucket Flashlight NEBO Bucket Flashlight NEBO Bucket Flashlight
      Quick view Details

      sku: NEBO-BUCKET

      NEBO Bucket Flashlight

      MSRP:
      Now: $24.99
      Add to Cart
    • 3157-G12-RED PAIR 3157 Amber Tail Light Replacement, Running, Turn (Hi/Low) 3157-G12-RED PAIR 3157 Amber Tail Light Replacement, Running, Turn (Hi/Low) 3157-G12-RED PAIR 3157 Amber Tail Light Replacement, Running, Turn (Hi/Low) 3157-G12-RED PAIR 3157 Amber Tail Light Replacement, Running, Turn (Hi/Low)
      Quick view Details

      sku: *3157-G12-RED

      3157-G12-RED PAIR 3157 Amber Tail Light Replacement, Running, Turn (Hi/Low)

      MSRP:
      Now: $25.98
      Add to Cart
    • 1157-G12-WHITE PAIR 1157 Brake and Tail Light (Dual Intensity) 1157-G12-WHITE PAIR 1157 Brake and Tail Light (Dual Intensity) 1157-G12-WHITE PAIR 1157 Brake and Tail Light (Dual Intensity) 1157-G12-WHITE PAIR 1157 Brake and Tail Light (Dual Intensity)
      Quick view Details

      sku: 1157-G12-WHITE

      1157-G12-WHITE PAIR 1157 Brake and Tail Light (Dual Intensity)

      MSRP:
      Now: $25.99
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    Fleetwood Discovery

    M4 is based in Southern California.  Our products are designed and sourced specifically for their  applications. 

    As Avid RV and Off Road enthusiasts, we are extremely familiar with products which make active lifestyles more enjoyable. 

    Our product line is focused around cutting edge LED technology due to its energy and superior light output benefits.

    M4 develops and sources RV Replacement LEDs that have been chosen specific to the application of RV interior lighting.  There are other less expensive generic LED bulbs available, as well as replacement products that cost substantially more, but M4 has done the research and testing to provide solutions that not only performs well, but do so at a reasonable price.  Whether you have an RV or Trailer, we have a quality LED light to meet your needs.
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    Showroom by Appointment
    21356 Nordhoff St #103
    Chatsworth, CA 91311

    See our Contact Page for visiting and phone details, and any Away Messages.

    email orders@m4sales.com for order questions

    818.717.8840
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