Osram Lumilux T5 6W - 840 Cool White| 21cm
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Specifications
| SKU | 257806 | |
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| EAN | 4099854107672 | |
| Manufacturer Code | 4099854107672 | |
| Brand | Osram | |
| Manufacturer Name | LUMILUX T5 Short EL Emergency Lighting 6 W/840 | |
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The recommended quantity refers to the number of products pre-packaged by the manufacturer. When you buy this quantity, we deliver the products in the original package from the manufacturer.
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Full box quantity | 25 |
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Our all-in warranty is fully included in the product price and covers both hidden defects and technical defects of the product that occurred before delivery. The warranty period differs per product and ranges from 1 year to a maximum of 6 years.
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Budgetlight warranty | 2 Years |
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The lifespan is an indication of the number of hours a product will last. This refers only to the hours the product is actually on. LED lighting has a significantly longer lifespan than conventional lighting. LED lighting therefore lasts much longer. How long you can actually use a product depends on the extent of its (daily) use. |
Average Lifetime (h) | 10000 |
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Because you can set the direction of the light yourself, a rotatable LED tube is extra efficient with energy. Moreover, the light does not shine around 360 degrees unnecessarily, as is the case with conventional fluorescent tubes.
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Rotatable | No |
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The technology indicates the operating base of a light source. The most well-known and energy-efficient example is LED. Other techniques include Halogen, gas discharge, TL (fluorescent) and the light bulb.
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Technology | Fluorescent |
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A ballast can be seen as an energy regulator that switches on the lighting. Is there a starter in the fixture? Then this is a conventional ballast (EM). Fixtures with an electronic ballast (HF) don't have a starter. A LED driver can be compared to an electronic ballast and only works with LED lighting.
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Ballast | Electronic (HF) |
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Lighting with a voltage of 220-240 Volt can be connected directly to the mains. Lighting with a different mains voltage (12 Volt and 24 Volt) requires an (electronic) transformer.
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Voltage (V) | 42 |
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The wattage indicates how much energy a light source consumes. With LED lighting, the wattage is considerably lower than with conventional lighting. LED lamps with a higher wattage generally also have a higher light intensity (number of lumens).
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Wattage | 6W |
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Dimmable bulbs work in combination with a dimmer switch and allow you to determine the desired light output. Dimming also provides energy saving potential because less power is required when the lamp is producing less light.
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Dimmable | Not Dimmable |
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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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Cap/base | G5 |
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![]() The colour code is a combination of colour rendering (CRI) and light colour (Kelvin). The first number indicates the colour rendering (1 = very poor colour rendering, 9 = maximum colour fastness). The second and third number contains the light colour. Example: the colour code 830 consists of good colour rendering (8) and warm white light (3000K). |
Colour Code | 840 Cool White |
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Colour temperature (Kelvin) | 4000 Cool White |
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Colour rendering is also known as Colour Rendering Index (CRI) and indicates the extent to which a light source reproduces colours, compared to the actual colours in daylight. Products with a good (80-89 Ra) or excellent (90-99 Ra) colour rendering show minimal deviations in the colour spectrum.
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Colour Rendering (Ra) | 80-89 |
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The light color indicates the color of the light emitted: white, colored, or UV. For many products in our assortment, the light is white, available in a range from very warm white to daylight white (expressed in Kelvin). With colored light, you have two options: 1. A single fixed color, such as red or green. 2. RGBW, which means you can adjust the light color at any time: white or colored.
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Colour of Light | White |
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The colour control type tells you in which way you can regulate the colour of the light. You have the following options:
By choosing your preferred light colour options, you are one step closer to the right light product. |
Light colour options | Single Color |
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The number of lumens (lm) is the light output of a light source. The higher the number of lumens, the more light the light source emits. The wattage and the number of lumens are not connected to each other. An LED lamp with a low wattage can have a higher number of lumens than a conventional lamp with a high wattage.
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Luminous Flux (Lumen) | 300lm |
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The Luminous Efficacy (lm/W) indicates how efficiently a light source uses energy. We divide the number of lumens by the wattage. The higher the number, the more efficient a product is in terms of energy consumption. LED lighting has a considerably higher lumen/Watt ratio than conventional lighting.
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Lumen per watt | 50 |
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![]() The most common lengths for T8 LED Tubes are 60cm, 90cm, 120cm and 150cm. For T5 LED Tubes this concerns 55cm, 85cm, 115cm and 145cm. Switching to LED? Then always check the length of your current fluorescent lighting. |
Length | 21cm |
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Lighting with a sensor only turns on when it receives a specific signal. This reduces energy costs. The (built-in) sensors respond to darkness (twilight switch) and/or movement (motion sensor).
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Type of sensor | No Sensor |
| Product Type Category | TL-5 / T5 Tube |
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The UV filter or UV block prevents the lamp from emitting UV radiation. UV radiation can cause discoloration of objects.
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UV Filter | Yes |
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| Bulb finish | Frosted | |
| Product Serie | Lumilux |
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It may happen that the length of this product differs from your old lighting fixture. As a result, the product does not fit in your current fixture or in the relevant place.
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Length (mm) | 226 |
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| Width (mm) | 212 | |
| Diameter (mm) | 16 | |
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The exact shape tells you something about the design of an LED bulb or conventional bulb. This is the technical name for the bulb shape, where the letter(s) describe the design of the light source and the number tells you something about the size of the bulb. For example, P45 means a pear shape with a diameter of 45 mm, while G125 is a globe shape with a diameter of 125 mm.
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Exact shape | T5 |
Description Osram Lumilux T5 6W - 840 Cool White| 21cm
Fluorescent lighting comes in different shapes and sizes. For example, there are very long fluorescent tubes available with a length up to 177cm. The Osram Lumilux T5 6W - 840 Cool White| 21cm is known for the fact that it has a relatively small size. This makes the fluorescent tube by Osram suitable for small fixtures. One of the advantages of the small size, is that they can illuminate hard to reach place where it is difficult to place larger fixtures.
Mini fluorescent tubes work in combination with a ballast. There are however different kinds of ballasts. For example, some tubes work with a conventional ballast (EM), which needs a starter. Other tubes work with an electronic ballast (HF) where there is no need for a starter for it to work. There are also tubes that can work with both (UN). Always check that the type of ballast matches the tube.
The Osram fluorescent tube uses 6W and has a light output of 300Lm. Furthermore, the Osram fluorescent tube has a length of 21cm, a diameter of 16mm and uses the G5 base. Are you interested in a quotation for large quantities of the Osram Lumilux T5 6W - 840 Cool White| 21cm or do you need advice? Contact us and we will be happy to help! When ordering multiple quantities of the Osram tube, 25 units are packed in one box.
What does the Osram fluorescent tube offer?
- A colour temperature of 4000K - Cool White
- A lifetime of 10000 hours
- A warranty of 2 Years

