Osram SubstiTUBE Value HF 21W 840 150cm | Cool White - Replaces 58W
Alternatives


Quantity | Price | Discount | |
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10 | £12.70 £10.33 excl. Tax incl. Tax | 1% |
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20 | £12.58 £10.23 excl. Tax incl. Tax | 2% |
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Any Lamp all-in warranty | 3 Years |
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Wattage | 23 |
Dimmable | No |
Colour temperature (Kelvin) | 4000K - Cool White |

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Specifications Osram SubstiTUBE Value HF 21W 840 150cm | Cool White - Replaces 58W
SKU | 220192 | |
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Manufacturer Name | ST8V-1.5M 21/840 HF | |
Quantity recommended | 1 |
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By purchasing the quantity recommended, your products will come as packaged by the manufacturer.
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Any Lamp all-in warranty | 3 Years |
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The Any-lamp All-in Warranty ensures that, should your product fail to work within the manufacturer’s average lifetime guidelines, we will replace your product at no expense to you. The warranty is included with the price, and covers you from 1 year up to 3 and 5 years.
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Energy efficiency class | A |
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EU guidelines dictate energy labels on electronic products to represent the energy efficiency of the device. This is indicated in levels (A++ to E), with A++ being the most efficient and E the least efficient.
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Average Lifetime (h) | 30000 |
Technology | LED | |
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Replaces (Watt) | 58 |
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Select the wattage of your conventional bulb to find the LED equivalent.
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Wattage | 21 | |
Dimmable | No | |
Cap / Base | G13 |
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The cap/base of a bulb is the part that connects it to the socket in the fixture. In the UK, B22 (Bayonet) caps/bases are still the most popular, although E27 (Edison screw) caps/bases are becoming increasingly popular. GU10 is the most common cap/base for spotlights. Check which cap/base you need carefully as many other types are also available.
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Colour temperature (Kelvin) | 4000K - Cool White |
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The colour temperature refers to the colour produced by a light. It's measured in Kelvin (K) and ranges from warm white (1700K - 3000K) to daylight white (6500K). Neutral white (3100K - 5000K) is mainly used for general lighting applications.
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Colour Code | 840 - Cool White |
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The colour code is a combination of the colour rendering index (CRI) and the colour temperature (K). The first number refers to the CRI (1 = very poor colour rendering, 9 = maximum accuracy). The second and third numbers refer to the colour temperature. For example, a light with a colour code of 830 has very good colour rendering and produces a warm white light.
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Colour Rendering (Ra) | 80-89 |
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The colour rendering index (CRI) indicates how accurately colours are represented under a beam of light. The index goes from 1 to 99, with a CRI of 1 being the poorest and a CRI of 99 being the best possible. Be careful not to confuse colour rendering with colour temperature (K).
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Light Output (Lumen) | 2100 |
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Lumen (lm) is the term used to describe the total amount of visible light emitted by a light source. The higher the number of lumens, the brighter it is.
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Beam Angle (degree) | 150 |
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The beam angle indicates the spread of the light in degrees. Small beam angles are preferred for accent lighting, while larger beam angles are for general lighting purposes.
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Housing | Glass | |
Sensor | No | |
Luminous Efficacy (Lm/W) | 100 |
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The lumen to watt ratio indicates the the efficiency of the bulb in terms of how much light is output per watt of energy consumed. An LED bulb emits more than 100 Lm/W, while an incandescent bulb typically has an efficiency of 10 Lm/W.
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EAN | 4052899943162 | |
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LED Starter included | No | |
Ballast | Electronic (HF) |
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Ballast is a term that designates a device to reduce the electrical current, it allows for example to power your source in 12V with a native voltage of 220V. There are two types of ballasts: ferromagnetic (or conventional) ballast and electronic ballast. The ferromagnetic ballast requires a starter made unnecessary for an electronic ballast.
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Features | Simple and Safe Replacement for Fluorescent Tube Without Rewiring |
Length | 150cm | |
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Length (mm) | 1500 | |
Diameter (mm) | 27.5 | |
Exact shape | T8 |
Description Osram SubstiTUBE Value HF 21W 840 150cm | Cool White - Replaces 58W
The Osram SubstiTUBE Value HF 21W 840 150cm | Cool White - Replaces 58W is the perfect alternative to a standard 58W fluorescent tube for fixtures that have a ballast that's Electronic (HF). This LED tube boasts excellent energy-efficiency and a long lifespan.
When changing to LED tubes, it's important to check the wattage and length of your current fluorescent tube. This 21W LED tube replaces a conventional 58W fluorescent tube with a length of 1500 mm. As soon as it's installed, you'll start saving up to 70% in energy costs compared to a fluorescent tube.
This product has a lifetime of 30000 hours. That means, in an average business environment, it will last more than 15 years (52 weeks a year, 10 hours a day from Monday to Friday). By comparison, a standard fluorescent tube only lasts 10,000 hours. For extra peace of mind, an all-in Any-lamp.co.uk warranty of 3 Years is included too.
This LED tube has a colour code of 840 - Cool White which means a colour temperature of 4000K - Cool White. That makes this LED tube suitable for lighting areas in factories and other working spaces.
You can easily install the tube yourself:
- Switch off the power
- Remove the old tube
- Install the new LED tube
- Switch on the power
- Start saving on energy costs!
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