FLUORESCENT TUBE F15W/33-640 15W COOL WHITE
Colour & Light Quality
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Offers neutral 4000 K cool white illumination—perfect for work and utility areas requiring balanced, glare-free lighting.
Technical Specifications
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Power: 15 W—energy-efficient compared to standard 58 W tubes.
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Lumen output: 850 lm
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Size: T8 (26 mm dia), ~438 mm (≈18″), G13 bi-pin base.
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Rated life: 15 000 hours
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Ballast compatibility: Works with most magnetic and electronic T8 ballasts.
Performance & Reliability
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Maintains consistent lumen output over its lifespan.
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Durable against frequent on/off cycling—great for task areas and intermittent use.
Safety & Eco Features
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Low mercury content—dispose responsibly.
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Reliable <0.5 s warm-up for instant cool white illumination.
Ideal Applications
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Commercial and institutional: offices, classrooms, retail, healthcare.
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Residential utility areas: kitchens, workshops, garages, basements.
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Industrial: warehouses, storage, utility zones.
Quick Specs Table
| Feature | Specification |
|---|---|
| Power | 15 W |
| Colour Temp | 4000 K (Cool White) |
| CRI | ≈ 62–64 (halophosphate “W”) |
| Lumen Output | ~850 lm |
| Tube Type | T8, 26 mm dia, G13 base |
| Rated Life | 15 000 h (~4 h/day → ~10 years) |
| Ballast | Magnetic or electronic |
| Warm-up Time | <0.5 s |
Why Choose This Tube?
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Balanced, neutral light enhances visibility without harshness.
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Low power draw (15 W) makes it cost-effective and energy-saving.
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Plug-and-play retrofit into existing G13 fixtures—no ballast changes.
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Long-lasting with minimal maintenance and consistent brightness.
Installation Tips
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Confirm ballast compatibility (magnetic/electronic).
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Safe to switch on/off often—no wear from frequent use.
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When retiring, dispose at a local recycling centre per fluorescent tube guidelines.
- Free delivery for all UK mainland orders over £48 inc VAT.*
- For orders under £48 inc VAT:
- For all other items delivery is charged at £3.90 inc. VAT.
- Delivery charges for batteries weighing over 1kg is £5.95 inc. VAT.
- Batteries weighing under 1kg have a delivery charge of £2.75 inc. VAT.
- All Fluorescent or LED Tubes 3ft or above in length will incur carriage at £9.50 inc. VAT.
- Light fixtures 600mm or greater are also sent by carrier and will incur carriage at £9.50 inc. VAT
- All Giant Vintage LED Lightbulbs will incur carriage at £9.50 inc VAT
Next day delivery
Next day delivery is available for all products in stock if ordered before 3pm. For more information read our delivery page.
Please note we are currently only able to deliver on Monday - Friday for next day orders.
Delivery options to Europe and Rest of the World are available. Use the shipping estimator at the checkout for prices.
We want you to have complete confidence when placing your order which is why we have a no-quibbles returns policy.
If you wish to return your items, please contact us via phone or email with the following details:
- Your contact details
- Your order number (starting 1000xxxxx)
- The reason for return
One of our customer services staff will contact you with instruction of how to proceed.
Call 01494 880099 or email sales@generallamps.com.
For further details see our guide on ordering, delivery & returns.