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T28 tubular LED appliance replacement bulb 2W 160LM studio showcase
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T28 tubular LED bulb standing front perspective with clear PC dome and E27 base
T28 LED globe replacement lamp standing profile with B22 bayonet dual pin base
T28 LED tubular bulb horizontal view showing 360-degree cylindrical PC dome
T28 LED bulb internal radial cylindrical array showing 20 SMD 3014 emitters
T28 tubular LED bulb base comparison showing E27 Edison screw and B22 bayonet
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Cross Reference / Direct Replacement
15W E27 / B22 Incandescent
25W Appliance Halogen Bulb
T28 Tubular Appliance Lamp
E27 / B22 Fridge & Freezer
60V Carnival Cabochon LED
110V / 230V Mains Appliance

T28 Tubular LED Appliance Bulb 2W 160LM - E27 / B22 (10-36V / 60V / 110V / 230V)

Factory-direct T28 tubular LED appliance bulb 2W 160LM replacing 15W-25W incandescent lamps. Features Φ27x51mm ultra-compact profile with E27/B22 bases and 10-36VDC, 60V amusement, 110V, and 230V discrete voltage circuits.
Product Model: T28-20L
Socket / Base: E27 Edison Screw / B22 Bayonet Base
Bulb Dimensions: Φ27mm Diameter × 51mm Length (Compact Tubular Profile)
Operating Voltage: 10-36VDC / 60VAC-DC / 100-130VAC / 200-240VAC (Discrete Circuits)
Power Consumption: 2.0W (15W - 25W Incandescent Equivalent)
Luminous Flux: 160 LM (360° Omnidirectional Uniform Distribution)
Color Temperature: 6500K Xenon White / 3000K Warm White / 4500K Neutral White
LED Emitters: 18-20× SMD 3014 LEDs (Ra ≥ 80 | 60V Configured with 18 LEDs)
Enclosure / Body: Shatterproof Optical PC Dome + Nickel-Plated Brass Base
Primary Uses: Domestic Refrigerators, Freezer Cabins, Carnival Rides, Marine Lighting
Quality & Warranty: CE (EMC Compliant), RoHS | 2 Years Factory Warranty
Factory B2B Terms: Standard: from 5 pairs | Custom Packaging: Packaging run MOQ 5,000 pcs (pre-funded and drawn down across repeat orders)
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  • Product Details

Market Positioning & Applications

The T28-20L is an ultra-compact tubular specialty LED bulb engineered specifically to solve clearance limitations in confined domestic appliances, commercial refrigeration units, and low-voltage off-grid installations. Measuring just Φ27mm in outer diameter and 51mm in overall length, it effortlessly fits narrow light housings where traditional pear-shaped (A15/A19) or spherical (G45/G50) bulbs are too wide or tall to install.

Equipped with standard large-format sockets—E27 Edison screw and B22 double-pin bayonet—this versatile bulb bridges the gap between full-size domestic sockets and space-constrained enclosures. It serves as an ultra-reliable, energy-saving retrofit for 15W to 25W incandescent appliance lamps across four dedicated application domains:

  • Domestic & Commercial Refrigeration: Fits slim internal light channels in domestic refrigerators, commercial upright glass-door coolers, under-counter freezers, and beverage chillers without obstructing shelving or storage bins.
  • Fairground, Theme Park & Carnival Cabochons: The dedicated 60VAC-DC discrete voltage version delivers steady, vibration-resistant illumination for fairground rides, Ferris wheels, carousel cabochons, and boardwalk gaming machines.
  • Off-Grid Solar & Marine Cabins: The 10-36VDC version operates safely in low-voltage battery banks, solar storage systems, boat interior sleeping berths, and marine engine utility rooms.
  • Kitchen Hoods & Industrial Machines: Withstands persistent mechanical vibrations in kitchen extractor hoods, industrial sewing workstations, and factory signal consoles.

Engineering Architecture & Discrete Voltage Circuits

To guarantee long operational life across diverse electrical environments, the T28-20L avoids dangerous "compromise" multi-voltage drivers and instead utilizes four tailored, application-specific discrete circuit configurations:

10-36VDC Low-Voltage

Non-polarity constant-current circuit designed for 12V and 24V off-grid solar banks, marine utility cabins, and battery-buffered DC backup lines.

60VAC-DC Amusement Spec

Configured with 18 high-voltage SMD 3014 LEDs for specialized European carnival ride systems, carousel cabochons, and arcade lighting circuits.

100-130VAC North America

Engineered for 120V household refrigerators, range hoods, and appliance fixtures in the US, Canada, Japan, and Taiwan.

200-240VAC Europe & Global

Optimized for 230V mains power grids across the UK, Europe, Australia, and Asia for standard domestic and commercial appliance lighting.

Precision Dimensions & Base Geometry

T28 tubular LED bulb precision dimensional blueprint showing D27x51mm dimensions and E27 B22 base options

T28 Precision Blueprint (D27mm × 51mm)

Ultra-compact cylindrical envelope with dual-option E27 Edison screw and B22 bayonet base specifications.

Photometric Uniformity & Optical Clarity

Unlike directional spotlights that create harsh shadows, the T28-20L features a 360-degree cylindrical emitter array enclosed in a high-transmission, shatterproof optical polycarbonate (PC) dome. It casts an even, omnidirectional 160-lumen wash of light that illuminates every shelf and corner of a refrigerator or enclosed lighting fixture. With a high color rendering index (Ra ≥ 80), food items, carnival displays, and gauge indicators retain their natural, true-to-life color reproduction.

Frequently Asked Questions

Why is the T28 bulb shaped as a slim cylinder instead of a standard round bulb?
Confined domestic appliances such as under-counter refrigerators, commercial upright chillers, and kitchen extractor hoods have strict internal clearance limits. Standard round A15, A19, or G50 bulbs frequently hit internal shelves or lamp cover lenses. The T28 tubular design maintains a slim Φ27mm diameter and a short 51mm overall height, allowing it to fit into narrow appliance housings while still utilizing standard full-size E27 or B22 sockets.
What is the difference between the 60V amusement version and standard mains versions?
The 60VAC-DC configuration is custom-engineered for European theme park rides, Ferris wheels, carousel cabochons, and arcade games. Because 60V circuits operate at a distinct electrical threshold, our factory specifically populates this version with 18 high-voltage SMD 3014 LEDs and customized current-limiting resistors to ensure stable, flicker-free performance under mechanical vibration. Other voltage variants utilize 20 LEDs.
Can the 10-36VDC version be powered directly from off-grid solar and marine batteries?
Yes. The 10-36VDC version incorporates a non-polarity constant-current driver that operates reliably across standard 12V and 24V battery systems. It easily tolerates charge-cycle voltage fluctuations (from a float voltage of 14.4V up to 28.8V) without flickering, overheating, or premature failure.
What is the minimum order quantity (MOQ) and packaging policy for wholesale export?
Standard stock configurations are available with a sample trial MOQ from 5 pairs. For customized retail packaging (blister cards, double blister, or bespoke branded color boxes), our packaging print run MOQ is 5,000 pcs. The client pre-funds the custom packaging batch, which is safely stored in our warehouse and drawn down across rolling repeat production orders.