Whelen M4 Series Linear LED Lightheads
The only Patented Linear-LED® lightheads with a bold look to the future in fire, ambulance and rescue truck emergency lighting. Designed to stand-up to the harsh environments and standards of the industry while providing top of the line performance!
▼ Read more...Features:
Surface mounted via two screws.
Super-LEDs provide unmatched high intensity warning, low current consumption.
Unique lens shape is completely illuminated with patented Linear-LED® designed reflector assembly, unlike older designs that may have “dead spots” or “hot spots”.
Lens and reflector are a sealed assembly.
Lighthead is designed with the mounting screws located outside of the sealed lens/reflector assembly, eliminating water infiltration.
Replaceable light engine is accessed from the rear of the lens/reflector assembly.
Built-on rear gasket insures that the lighthead and optional flange does not touch the vehicle’s surface, preventing contact.
Updated design allows for faster and easier installation.
M4 lightheads have multiple Scan-Lock™ flash patterns available. Choose from Solid, Left/Right, Top/Bottom, In/Out, or Diagonal sequencing. Meets KKK 1822F, NFPA 1901, SAE and EC65 specifications. Many flash patterns meet California Title XIII.
Hard coating on lenses resist scratches, chemical and corrosive damage.
Available in Single or Split Colors.
Optional Black or Chrome flange available.
Specifications:
5-1/2" Long X 3-3/8" H, Protrudes 1-3/8"
Current Draw @ 12.8 VDC in "Solid" mode 1.5 amps peak, 0.6 amps average
Product Information 
Whelen M Series Data Sheet (PDF, 247 KB)
Whelen M4 Series Installation Guide (PDF, 153 KB)
Available M4 Models
Model Desc Part #
M4AC - M4 LED FLASHER AMBER WITH CLEAR LENS - 01-066A798-10H
M4AC24 - M4 LED FLASHER AMBER/CLEAR 24V - 01-066A798210H
M4C24 - M4 LED FLASHER WHITE 24V - 01-066A798230H
M4DWB - M4 DRIVING/WARNING LIGHT BLUE - 01-066A798-2AH
M4R24 - M4 LED FLASHER RED 24V - 01-066A7982R0H
M4GC - M4 LED FLASHER GREEN/CLEAR - 01-066A798-40H
M4A - M4 LED FLASHER AMBER - 01-066A798-A0H
M4D - M4 LED FLASHER WHITE/RED - 01-066A798-D0H
M4J - M4 LED FLASHER BLUE/RED - 01-066A798-J0H
M4M - M4 LED FLASHER AMBER/BLUE - 01-066A798-M0H
M4V2BC - M4 V-SERIES LIGHT BLUE/CLEAR - 01-066F871-200
M4V2B - M4 V-SERIES LIGHT BLUE - 01-066F871-B00
M4B6R - MOTORCYCLE BOX 6-M4 RIGHT OPEN - 01-0686344-6RG
M4FB - M4 SERIES FLANGE BLACK - 01-046A680-00A
M4BRUSH - M4 SERIES BRUSH GUARD - 01-046C333-000
M4TB15C - M4 BUMPER MT FLANGE CHRM PR - 01-046G339-030
M441 - M441 MOLEX 3 PIN CONNECTOR KIT - 01-0730084-000
M4BBBBBB - M4 M/C BOX LIGHT PKG B/B/B/B/B/B - 02-0486344-04G
M4EEEEEE - M4 M/C BOX LIGHT PKG E/E/E/E/E/E - 02-0486344-10G
M4JJJJKM - M4 M/C BOX LIGHT PKG J/J/J/J/K/M - 02-0486344-14G
M4ABBBBB - M4 M/C BOX LIGHT PKG A/B/B/B/B/B - 02-0486344-19G
M4RRRRRR - M4 M/C BOX LIGHT PKG R/R/R/R/R/R - 02-0486344-23G
M4DJJJJE - M4 M/C BOX LIGHT PKG D/J/J/J/J/E - 02-0486344-31G
M4CCMMCC - M4 M/C BOX LIGHT PKG WITH WITH M/M/WITH W - 02-0486344-35G
M4JJJJED - M4 M/C BOX LIGHT PKG J/J/J/J/E/D - 02-0486344-39G
M4DWA - M4 DRIVING/WARNING LIGHT AMBER - 01-066A798-1AH
M4BC24 - M4 LED FLASHER BLUE/CLEAR 24V - 01-066A798220H
M4RC24 - M4 LED FLASHER RED/CLEAR 24V - 01-066A798250H
M4BS24 - M4 LED STEADY BLUE 24V - 01-066A7982B2H
M4C - M4 LED FLASHER WHITE - 01-066A798-30H
M4RCS - M4 LED STEADY RED WITH CLEAR LENS - 01-066A798-52H
M4B - M4 LED FLASHER BLUE - 01-066A798-B0H
M4F - M4 LED FLASHER AMBER/WHITE - 01-066A798-F0H
M4K - M4 LED FLASHER AMBER/RED - 01-066A798-K0H
M4RS - M4 LED STEADY RED - 01-066A798-R2H
M4V2RC - M4 V-SERIES LIGHT RED/CLEAR - 01-066F871-500
M4B6B - MOTORCYCLE BOX 6-M4 REAR OPEN - 01-0686344-60G
M4IM2LRC - M4 FENDER FREIGHTLINER M2 CHRM - 01-046B628-03B
M4TM15C - M4 MIRROR MT FLANGE CHROME PR - 01-046G338-030
M469 - M-469 FLASH TUBE - 01-0470044-009
M4BSEP - M4B OPTIONAL SEPARATION PLATE - 02-0486344-00G
M4RRRBBB - M4 M/C BOX LIGHT PKG R/R/R/B/B/B - 02-0486344-06G
M4JJDMJJ - M4 M/C BOX LIGHT PKG J/J/D/M/J/J - 02-0486344-12G
M4AAKKAA - M4 M/C BOX LIGHT PKG A/A/K/K/A/A - 02-0486344-16G
M4JRBJJR - M4 M/C BOX LIGHT PKG J/R/B/J/J/R - 02-0486344-21G
M4EEBBEE - M4 M/C BOX LIGHT PKG E/E/B/B/E/E - 02-0486344-28G
M4BEMEEB - M4 M/C BOX LIGHT PKG B/E/M/E/E/B - 02-0486344-33G
M4RBRBBR - M4 M/C BOX LIGHT PKG R/B/R/B/B/R - 02-0486344-37G
M4ACS - M4 LED STEADY AMBER WITH CLEAR LENS - 01-066A798-12H
M4ACS24 - M4 LED STEADY AMBER/CLEAR 24V - 01-066A798212H
M4CS24 - M4 LED STEADY WHITE 24V - 01-066A798232H
M4B24 - M4 LED FLASHER BLUE 24V - 01-066A7982B0H
M4RS24 - M4 LED STEADY RED 24V - 01-066A7982R2H
M4RC - M4 LED FLASHER RED WITH CLEAR LENS - 01-066A798-50H
M4AS - M4 LED STEADY AMBER - 01-066A798-A2H
M4E - M4 LED FLASHER WHITE/BLUE - 01-066A798-E0H
M4DWJ - M4 DRIVING/WARNING LIGHT RED/BLUE - 01-066A798-JAH
M4R - M4 LED FLASHER RED - 01-066A798-R0H
M4V2C - M4 V-SERIES LIGHT WHITE - 01-066F871-300
M4V2R - M4 V-SERIES LIGHT RED - 01-066F871-R00
M4FC - M4 SERIES FLANGE CHROME - 01-046A680-03A
M4TM15B - M4 MIRROR MT FLANGE BLK PAIR - 01-046G338-000
M4FF15B - M4 FOG LIGHT MT BKTS 2015 F-150 - 01-046G507-000
M442 - M442 MOLEX 3 SOCKET CONN. KIT - 01-0730086-000
M4JJJJJJ - M4 M/C BOX LIGHT PKG J/J/J/J/J/J - 02-0486344-05G
M4RRJJBB - M4 M/C BOX LIGHT PKG R/R/J/J/B/B - 02-0486344-11G
M4JJRBJJ - M4 M/C BOX LIGHT PKG J/J/R/B/J/J - 02-0486344-15G
M4BBRBBB - M4 M/C BOX LIGHT PKG B/B/R/B/B/B - 02-0486344-20G
M4RBRBRB - M4 M/C BOX LIGHT PKG R/B/R/B/R/B - 02-0486344-25G
M4DDJDDD - M4 M/C BOX LIGHT PKG D/D/J/D/D/D - 02-0486344-32G
M4RBKMRB - M4 M/C BOX LIGHT PKG R/B/K/M/R/B - 02-0486344-36G
M4BC - M4 LED FLASHER BLUE WITH CLEAR LENS - 01-066A798-20H
M4BCS - M4 LED STEADY BLUE WITH CLEAR LENS - 01-066A798-22H
M4A24 - M4 LED FLASHER AMBER 24V - 01-066A7982A0H
M4G24 - M4 LED FLASHER GREEN 24V - 01-066A7982G0H
M4CS - M4 LED STEADY WHITE - 01-066A798-32H
M4DWR - M4 DRIVING/WARNING LIGHT RED - 01-066A798-5AH
M4BS - M4 LED STEADY BLUE - 01-066A798-B2H
M4G - M4 LED FLASHER GREEN - 01-066A798-G0H
M4L - M4 LED FLASHER GREEN/RED - 01-066A798-L0H
M4V2AC - M4 V-SERIES LIGHT AMBER/CLEAR - 01-066F871-100
M4V2A - M4 V-SERIES LIGHT AMBER - 01-066F871-A00
M4B6L - MOTORCYCLE BOX 6-M4 LEFT OPEN - 01-0686344-6LG
M4CT15B - M4 FOG LIGHT MT 2015 TAHOE BLK - 01-0447260-000
M4FC400 - M4 TO 400 CONVERT FLANGE CHROM - 01-046B731-03B
M4TB15B - M4 BUMPER MT FLANGE BLK PAIR - 01-046G339-000
M444 - M444 MOLEX 2 PIN CONNECTOR KIT - 01-0730082-000
M4B6CHRG - M4B SERIES BATTERY CHARGER - 02-0486344-02G
M4JJKMJJ - M4 M/C BOX LIGHT PKG J/J/K/M/J/J - 02-0486344-08G
M4ABABAB - M4 M/C BOX LIGHT PKG A/B/A/B/A/B - 02-0486344-13G
M4JJDEJJ - M4 M/C BOX LIGHT PKG J/J/D/E/J/J - 02-0486344-17G
M4BBMMBB - M4 M/C BOX LIGHT PKG B/B/M/M/B/B - 02-0486344-22G
M4CCCCCC - M4 M/C BOX LIGHT PKG WITH WITH WITH WITH WITH W - 02-0486344-30G
M4BBRRKM - M4 M/C BOX LIGHT PKG B/B/R/R/K/M - 02-0486344-34G
M4RBKMBR - M4 M/C BOX LIGHT PKG R/B/K/M/B/R - 02-0486344-38G
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