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P28S T38 Marine LED Navigation Bulb (40W / 60W Equiv) - IP66 (10-36V / 48-80V / 100-240V)
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P28S T38 marine LED navigation bulb 7W 700LM with clear PC cover studio shot
T38-45L marine LED bulb cylindrical 360 degree SMD 2835 emitter array
P28S marine prefocus base with locator lug and insulated dual bottom contacts
Heavy duty aluminum heat sink core and clear protective PC cover detail
T38 marine navigation LED lamp installed inside stern navigation lantern on boat at sunset
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Cross Reference / Direct Replacement
P28S (Flanged Prefocus Marine Navigation)
T38 Marine (Tubular Navigation Lamp 40W / 60W Equiv)
B22 / B22d (Double Contact Bayonet Marine Cap)
E27 / E26 (Standard Industrial Marine Screw Base)
100-240VAC (Commercial Shipboard Generator Grid)
10-36VDC (Vessel 12V / 24V Battery Navigation System)
48-80VDC (High-Voltage Marine & Industrial Auxiliary System)
IMO COLREG (Commercial Masthead & Sidelight Compliant)

P28S T38 Marine LED Navigation Bulb (40W / 60W Equiv) - IP66 (10-36V / 48-80V / 100-240V)

7.0W high-output marine navigation LED bulb delivering 700LM (replacing traditional 40W/60W tungsten lamps) with 45x SMD 2835 LEDs, IP66 aluminum-PC enclosure, and available in P28S flanged prefocus, E27, and B22 bases across discrete 10-36VDC, 48-80VDC, and 100-240VAC shipboard power tiers.
Product Model:T38-45L
Socket / Base:P28S (Flanged Prefocus) / E27 / B22
Operating Voltage:10-36VDC / 48-80VDC / 100-240VAC (Factory-Discrete Power Boards)
Power Consumption:7.0W (Replaces Traditional 40W / 60W Incandescent Tungsten Marine Bulbs)
Luminous Flux:700 Lumens (High-Flux 360° Cylindrical Marine Optical Dispersion)
Color Temperature:6500K Daylight White · 3000K Warm White (Navigation Red & Green Available)
LED Emitters:45x High-Efficiency SMD 2835 LEDs (High-Thermal Substrate Array)
Enclosure & Ingress:Heavy-Duty Aluminum Heat Core + Shatterproof Clear PC Cover | IP66 Marine Rated
Bulb Dimensions:Φ38mm × L110mm (P28S) / Φ38mm × L105mm (E27 / B22)
Circuit & Function:Single-Intensity Constant Output | Insulated Dual-Contact Power Feed
Primary Uses:Commercial Ship Masthead, Port/Starboard Navigation Lanterns, Offshore Platforms
Quality & Warranty:CE (EMC Compliant), RoHS | 2 Years Factory Warranty
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  • Product Details

Heavy-Duty Marine Navigation LED Bulb T38-45L (40W / 60W Incandescent Replacement)

The T38-45L is an industrial-grade marine navigation LED lamp specifically engineered to replace fragile traditional 40W and 60W incandescent tungsten navigation bulbs in commercial vessels, container ships, tugboats, ocean-going trawlers, and offshore installations. Featuring a robust Φ38mm heavy-duty tubular form factor, an aircraft-grade aluminum thermal heat sink, and a high-impact shatterproof clear PC cover, this lamp delivers 700 lumens of balanced 360-degree cylindrical light to satisfy rigorous international nautical visibility requirements.

Precision Dimensional Blueprints (P28S, B22, E27 Form Factors)

Engineered for seamless direct retrofitting into standard marine navigation lanterns. Available in P28S flanged prefocus (with locator lug for optical alignment), B22 bayonet cap, and E27 Edison screw base. Click drawings to zoom:

P28S T38 marine navigation LED bulb dimensional drawing D38x110mm
P28S Flanged Prefocus
Φ38mm × L110mm (Standard Marine Prefocus Base)
B22 T38 marine navigation LED lamp dimensional blueprint D38x105mm
B22 Bayonet Base
Φ38mm × L105mm (Heavy-Duty Vibration-Proof Cap)
E27 T38 marine navigation LED bulb dimensional blueprint D38x105mm
E27 Edison Screw Base
Φ38mm × L105mm (Standard Industrial Screw Socket)

Key Engineering Advantages Over Incandescent Marine Bulbs

  • Direct 40W / 60W Incandescent Replacement: Consumes only 7.0W while delivering a true 700 lumens, reducing navigational electrical system battery draw by over 85%.
  • Vibration-Proof Solid-State Design: 45 surface-mounted SMD 2835 LEDs eliminate the common filament rupture failure caused by heavy engine resonance and ocean wave slamming.
  • IP66 Marine Weatherproof Protection: Sealed robust PC cover and corrosion-resistant nickel-plated brass bases resist dense salt-spray corrosion and high-humidity maritime environments.
  • Discrete Professional Voltage Boards: Dedicated factory-configured driver boards for 10-36VDC (shipboard 12V/24V battery systems), 48-80VDC, and 100-240VAC (generator grids).
  • Optically Balanced 360° Light Dispersion: Cylindrical circular chip array ensures uniform intensity across all horizon sectors when seated inside fresnel lantern housings.

Commercial Marine Application Sectors

Masthead & All-Round Navigation Lights

Engineered for primary vessel masthead white lamps, stern lamps, and towing light fixtures on commercial tugs, bulk carriers, and maritime workboats requiring 3-5 nautical mile optical range.

Port & Starboard Sidelight Lanterns

Available in chromatic red and green LED configurations or clear white behind coloured fresnel glass lenses for IMO COLREG-compliant port and starboard sidelight housings.

Anchor & Restricted Maneuverability Lights

Continuous 24/7 reliability for vessels at anchor or engaged in towing operations, where uninterrupted optical clarity and thermal management are mission-critical.

Offshore Platforms & Buoy Beacons

Ideal for stationary maritime navigation towers, oil rig perimeter warning markers, and marine fairway buoy lanterns running on discrete low-voltage DC or AC mains.

Custom OEM/ODM Manufacturing & Voltage Engineering

As an integrated LED lighting manufacturing facility in Dongguan, China, we offer flexible OEM batch engineering:

  • Base Configurations: P28S (Flanged Prefocus with positioning lug), B22d bayonet cap, and E27 screw base.
  • Dedicated Discrete Voltages: Factory-tuned constant-current driver circuits for discrete 10-36V DC, 48-80V DC, and 100-240V AC.
  • Spectral Customization: 6500K Xenon White, 3000K Warm White, Aviation/Marine Signal Red, and Marine Signal Green.
  • Private Labeling & Packaging: Neutral industrial master cartons, custom blister cards, or full-color retail boxes with customer branding.

Frequently Asked Questions

Can the T38-45L replace traditional 40W and 60W incandescent tungsten marine bulbs?
Yes. The T38-45L consumes only 7.0W while delivering a genuine 700 lumens of uniform 360-degree cylindrical light. It is specifically engineered to replace 40W and 60W incandescent tungsten bulbs in commercial navigation lanterns, reducing generator power consumption by over 85% while eliminating filament breakage from ship engine vibration.
What is the function of the P28S base and how does it differ from E27 or B22?
The P28S base features a 28mm prefocus mounting flange with an asymmetrical locator lug, ensuring the LED light center aligns precisely with the optical focal point of marine fresnel lantern lenses. While B22 and E27 are standard bayonet and screw caps, P28S is the international nautical standard for precision pre-aligned commercial navigation fixtures.
What discrete operating voltage versions are available for shipboard power systems?
The T38-45L is manufactured with discrete, factory-optimized internal constant-current driver boards: 10-36V DC (for 12V/24V battery banks), 48-80V DC, and 100-240V AC (for 110V/220V shipboard generator grids). Each version is dedicated to its voltage tier to ensure maximum efficiency and electrical safety.
What is the official B2B wholesale MOQ and custom packaging policy?
Standard neutral factory packaging is available from 5 pairs for evaluation testing. For private-label custom branding (custom blister card or four-color retail box), the minimum initial packaging print run is 5,000 pieces, which is pre-funded and stored in our warehouse, then drawn down across repeat production batches.