24W T5 High Output fluorescent tube with a G5 bi-pin base, producing approximately 1,750 lumens of 4000K Cool White (840) illumination. The Osram LUMILUX T5 HO 24W/840 provides bright, uniform linear lighting for offices, retail spaces, workshops, commercial interiors, display lighting, and compatible T5 fluorescent fittings.
What it is
The Osram LUMILUX T5 HO 24W G5 840 Fluorescent Lamp is a slim, high-output linear fluorescent tube designed for professional, commercial, and task-lighting applications where strong illumination is required from a compact lamp.
Its T5 construction measures approximately 16mm in diameter, while the G5 bi-pin base provides connection to compatible T5 lamp holders. The 24W T5 HO format has a nominal tube length of approximately 549mm, making it the same general length class as a 14W T5 HE lamp but with substantially higher power and light output.
The 840 colour designation indicates a colour rendering index in the 80+ range combined with a 4000K Cool White colour temperature. This produces a clean, neutral white light particularly well suited to working, retail, commercial, and general-purpose environments.
As a T5 HO (High Output) lamp, the 24W tube is designed to provide greater light output from a relatively short lamp. It requires a compatible 24W T5 HO electronic ballast and must not be treated as electrically interchangeable with a 14W T5 HE tube simply because the lamps are similar in length.
Use Cases / Applications
Ideal for professional linear lighting applications, including:
- Offices
- Retail stores
- Commercial interiors
- Workshops
- Task lighting
- Display lighting
- Educational facilities
- Laboratories
- Work benches
- Kitchens
- Utility areas
- Shelving systems
- Existing luminaires designed for 24W G5 T5 HO fluorescent tubes
Key Benefits
- 24W T5 High Output (HO) fluorescent technology
- Approximately 1,750 lumens
- 4000K Cool White illumination
- 840 colour designation
- Good CRI 80+ colour rendering
- Slim T5 / approximately 16mm diameter construction
- Compact G5 bi-pin base
- Approximately 549mm nominal tube length
- High light output from a relatively short fluorescent tube
- Uniform linear illumination
- Suitable for professional and commercial lighting
- Established Osram LUMILUX fluorescent technology
- Useful replacement for existing 24W T5 HO installations
The important advantage of the T5 HO format is its ability to produce relatively high light output from a compact lamp. This makes it useful where fitting dimensions are restricted but stronger illumination is required.
Safety Compliance
- Use only with compatible 24W T5 HO electronic control gear
- Do not connect directly to the 220–240V mains supply
- Confirm 24W rating, G5 base and physical tube length before replacement
- Do not replace with a 14W T5 HE solely because the tubes are approximately the same length
- T5 HE and T5 HO lamps have different electrical operating characteristics
- Isolate the electrical supply before installation or replacement
- Handle the glass tube carefully
- Avoid excessive force on the G5 pins
- Fluorescent lamps contain a small amount of mercury and should be recycled or disposed of appropriately
- Not interchangeable with T8 G13 fluorescent tubes
- Not electrically interchangeable with 14W T5 HE lamps
- Confirm wattage, length, G5 base and ballast compatibility before installation
Brand Reputation
Osram is an internationally recognised lighting manufacturer with a long history in professional, commercial, industrial, automotive, and specialist lighting.
The Osram LUMILUX fluorescent range became widely established in professional installations due to its efficient light output, consistent colour characteristics, broad range of colour temperatures, and compatibility with purpose-designed fluorescent lighting systems.
Specification
- Type: T5 Miniature Fluorescent Tube
- Material: Precision Glass (G)
- Voltage: 220V
- Wattage:Â 24W
- Lamp Shape: T5 Linear Tube
- Lamp Length: 549mm
- Lamp Diameter: Approximately 16mm
- Lamp Base: G5 Bi-Pin
- Lamp Finish: Opal
- Color Temp: Cool White | 4000K
- Lumen: ±2000Lm
- Energy Saving: No
- Brand:Â Eurolux |Â General Electric | Philips | Sparkie
- Warranty: 1 Year
- Nationwide Shipping
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