Product Description
T5HO-25-48G-835-SD-BYP Linear Tubes 3400 Lumens T5HO 25W 4 Feet Glass 80CRI 3500K Single/double from RAB Lighting provide a high-efficiency LED replacement for traditional T5HO fluorescent lamps, delivering bright, neutral white light with long life and versatile single- or double-ended bypass wiring for a wide range of commercial and industrial applications.
Product Summary
| Brand | RAB Lighting |
| Model | T5HO-25-48G-835-SD-BYP |
| Lamp Type | LED T5HO linear tube, UL Type B bypass |
| Input Wattage | 25 W (replaces 54 W T5HO fluorescent) |
| Lumen Output | Approx. 3,300 lumens |
| Color Temperature | 3500 K neutral white |
| CRI | 82 (high color performance) |
| Voltage | 120–277 VAC, 50/60 Hz |
| Length | 4 ft T5HO, G5 base |
| Rated Life | 50,000 hours (LED) |
| Listings | UL Recognized, UL Classified, DLC Listed, NSF, RoHS, FCC |
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Product Benefits
- High-efficiency LED upgrade that replaces conventional 54 W T5HO fluorescent tubes while using only 25 W, reducing energy consumption and operating costs.
- Flexible single- or double-ended bypass wiring works with both shunted and non-shunted lampholders, simplifying retrofits across a wide variety of existing fixtures.
- Bright, neutral 3500 K light with high CRI for comfortable, accurate color rendering in offices, schools, retail aisles, and light industrial spaces.
- NSF, DLC, and UL compliance supports use in food-related environments and qualifies many installations for utility rebates and incentive programs.
Key Features
- Integral LED driver allows direct connection to line voltage without a fluorescent ballast.
- UL Type B retrofit design for line-voltage operation after ballast bypass.
- Single- and double-ended wiring options for maximum compatibility with existing fixtures.
- 4 ft T5HO glass construction with metal end caps and a frosted lens for even, diffused illumination.
- Wide input voltage range of 120–277 VAC to suit most commercial power systems.
- Long 50,000-hour LED lifespan reduces maintenance and relamping intervals.
- Environmentally friendly design with no mercury and RoHS-compliant components.
- Suitable for enclosed and damp locations, expanding application options indoors.
Technical Specifications
| Product Type | LED linear tube, T5HO |
| Retrofit Type | UL Type B, ballast bypass |
| Wattage Equivalency | Replaces 54 W T5HO fluorescent |
| Input Wattage | 25 W |
| Input Voltage | 120–277 VAC, 50/60 Hz |
| Power Factor | Greater than 0.9 |
| THD | Less than 25 percent |
| Dimming | Dimmable, but not recommended for dimming applications |
| Operating Temperature | -4 °F to 113 °F (-20 °C to 45 °C) |
Physical Specifications
| Nominal Length | 4 ft |
| Lamp Shape | T5HO linear tube |
| Base Type | G5 bi-pin |
| Enclosure Material | Glass |
| Endcap Material | Metal |
| Lens Finish | Frosted for reduced glare and uniform output |
Performance Specifications
| Lumen Output | Approx. 3,300 lumens nominal |
| Efficacy | Approximately 132 lumens per watt |
| Color Temperature | 3500 K neutral white |
| Color Rendering Index (CRI) | 82 with high R9 performance greater than zero |
| Color Consistency | Less than 5-step MacAdam ellipse binning for uniform color |
| Color Stability | Color shift of no more than 200 K over a five-year period (warranted) |
| Rated Lifespan | 50,000 hours based on LED testing |
Compliance & Safety
| UL Status | UL Recognized and UL Classified |
| Environmental Ratings | Suitable for dry and damp locations; approved for use in enclosed fixtures |
| California Title 24 / CEC | Lawful for sale in California (CEC compliant) |
| NSF Listing | Meets NSF/ANSI standards for Food Zone (non-contact), Splash, and Non-Food Zones; tube guard required in open fixtures |
| RoHS | RoHS compliant; no mercury or UV |
| FCC | Complies with FCC Part 15B requirements |
| DLC Listing | Listed on the DesignLights Consortium Qualified Products List (DLC 5.1) |
| Warranty | Five-year limited warranty from RAB Lighting |
Application Examples
- Retrofit existing T5HO fluorescent fixtures in commercial offices and open-plan workspaces.
- Illuminate school corridors, classrooms, and university facilities with efficient neutral-white light.
- Upgrade retail aisles, stock rooms, and back-of-house areas for better visibility and reduced energy costs.
- Provide continuous lighting in warehouses, distribution centers, and light industrial environments.
- Use in food processing and food service areas where NSF-compliant lighting is required (with appropriate tube guards in open fixtures).
- Parking garages and utility rooms equipped with 4 ft T5HO fixtures rated for enclosed or damp locations.
Installation Tips
- Always disconnect power at the breaker before working on any fixture to ensure safety.
- Confirm compatibility by verifying that the existing luminaire uses T5HO lamps with G5 bases and is suitable for a Type B, ballast-bypass retrofit.
- Bypass or remove the fluorescent ballast following the wiring diagrams in the installation guide; this lamp operates directly on line voltage.
- Select single- or double-ended wiring based on the luminaire and follow the specified diagrams carefully for shunted or non-shunted lampholders.
- Use appropriate connectors and enclosures for all splices and terminations, keeping conductors secure and protected.
- Label retrofitted fixtures to indicate that they now use LED Type B lamps and no longer require a ballast.
- Engage a qualified electrician whenever local codes require or if you are not familiar with line-voltage wiring.
Frequently Asked Questions
What type of lamp is the T5HO-25-48G-835-SD-BYP?
This lamp is an LED T5HO linear tube designed as a direct retrofit for traditional T5HO fluorescent lamps. It operates at 25 watts and is intended for ballast-bypass installations where the LED tube connects directly to line voltage.
Does this LED tube require a fluorescent ballast to operate?
No. The lamp has an integral driver and is classified as UL Type B, which means the existing fluorescent ballast must be removed or bypassed. After rewiring according to the installation instructions, the tube connects directly to the line and neutral conductors.
Can the tube be wired in both single-ended and double-ended configurations?
Yes. The product supports both single-ended and double-ended wiring methods and works with shunted or non-shunted lampholders when wired according to the diagrams in the installation guide. This flexibility makes it suitable for a wide range of existing fixtures.
Is the T5HO-25-48G-835-SD-BYP dimmable?
The lamp is technically dimmable, but it is not recommended for use in dimming applications. For best performance and reliability, it should be used in non-dimming circuits unless the dimmer has been specifically verified as compatible by the manufacturer.
Where can this LED tube be installed?
The tube is rated for dry and damp locations and is suitable for use in enclosed fixtures. It is commonly used in offices, schools, retail, warehouses, and light industrial facilities that already have T5HO fixtures rated for these environments.
Is this product appropriate for food processing or food service areas?
Yes. The lamp carries an NSF listing for Food Zone (non-contact), Splash, and Non-Food Zones. In open fixtures, a tube guard or additional protection may be required to meet NSF and local code requirements.
What is the operating temperature range for this lamp?
The LED tube is designed to operate reliably in ambient temperatures from -4 degrees Fahrenheit up to 113 degrees Fahrenheit, making it suitable for many indoor commercial and light industrial environments.
Does this LED tube qualify for energy rebates?
The product is listed on the DesignLights Consortium Qualified Products List, which often helps qualify installations for utility rebates or incentives. Availability and amounts vary by region, so check with your local utility provider for program details.
How long is the warranty on this product?
RAB Lighting provides a five-year limited warranty covering materials, workmanship, light output, color stability, driver performance, and finish, subject to the manufacturer’s standard terms and conditions.
What fluorescent lamp does this product replace?
The T5HO-25-48G-835-SD-BYP is designed to replace a conventional four-foot 54 watt T5HO fluorescent tube, providing similar or better light output with significantly reduced energy consumption.