Halogen lamps

Advantages of Halogen lamps

Question

What are the advantages of Halogen lamps in contrast to incandescent lamps?

Answer

• Compactness
• No glass blackening
• Longer life duration
• Higher degree of effectiveness
• Higher color temperature

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Base designation R7s-15...

Question

What do the specifications 15 or 20 after the actual base designation mean?

Answer

The numbers following the familiar base designation mean the specification of the pinch width of the lamp in mm for some types of halogen lamps.
 
BExample :
 

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DC operation

Question

Can halogen lamps also be operated with direct current?

Answer

With low-wattage, high-voltage (230, 240 V) halogen lamps, a drastic reduction in the service life must be expected with DC operation. For example, with the 60 W lamp only approximately 15 % of the nominal value is achieved. The reason for this is the increasing material movements in the tungsten wire of the filament. Higher-wattage lamps with their larger wire diameter are less critical in DC operation. This is similar for the low-voltage lamps (12 V), as here the critical limit is low due to the generally larger wire diameter of these lamps, i.e. below 20 W.

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DECOSTAR IRC

Question

What are the major properties and advantages of the DECOSTAR IRC lamp?

Answer

The IRC technology used in the installation lamp (burner) contains the routing of the infrared (IR) radiation of the lamp back to the filament by means of a suitable reflecting layer mounted outside on the lamp (burner).
This additional energy supply for the filament enables the supplied electrical energy for the filament to be reduced. The reduction of the wattage (W) can take place without a loss of light (luminous flux or luminous intensity). As a result, lamps with IRC technology can be used to reduce the total wattage of the system, and therefore also for thermal load reduction are, in the broadest sense, energy savers. However, it is also important that the thermal load on the luminaire is reduced if, for example, a 50 W cold-light reflector lamp is replaced with a 35 W DECOSTAR IRC with the advantage of the same luminous intensity.
More simply, it can be said: the same amount of light with lower wattage.
 

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Designation MR 16

Question

What does the designation MR 16 mean?

Answer

MRxx is a designation for the reflector shape or reflector size for low-voltage halogen reflector lamps in North America (USA, Canada). A designation of this kind can often also be found in other countries outside Europe:
 
MR 11DECOSTAR with 35 mm diameter
MR 16DECOSTAR with 51 mm diameter

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Dimmability

Question

What must be observed when dimming halogen lamps?

Answer

Here a distinction must be made between the mains-voltage lamps and the low-voltage lamps. 230 or 240 V mains-voltage lamps (high-voltage) are dimmed with normal incandescent lamp dimmers, i.e. standard leading-edge phase control dimmers (code R).
With the low-voltage lamps (12 V) the dimmer is dependent on the type of transformer used. If a conventional wound transformer is used, then a low-voltage leading-edge phase control dimmer (also often called dimmers for inductive loads) with the codes R and L is used. If an electronic transformer is used, then code C trailing-edge phase control dimmers are primarily used. OSRAM transformers of the series HT...L 70 to 210 can be dimmed with trailing-edge phase control, while the series HTM (Mouse) 70 to 150 is dimmable with trailing-edge or leading-edge phase control.

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Distance from illuminated object

Question

What minimum distance must be maintained between the DECOSTAR lamps and the illuminated object?

Answer

The luminaire manufacturer must make such a specification with reference to the maximum permissible wattage (W). Here the light emission angle of the lamp used and the nature of the object both play a role. Small or very small light emission angles require greater distances to the illuminated object, while shorter distances are sufficient for medium angles (guide value: DECOSTAR with cover glass 50 W/38 ° WFL, approx. 50 cm). According to the luminaire regulation, the temperature at the illuminated object (defined measuring surface) may not exceed 90 °C.

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Energy efficiency/heat load

Question

What is the energy efficiency or the heat load of a halogen lamp?

Answer

Halogen lamps have radiation properties very similar to those of thermal radiators. For calculation purposes in climate control, it should be simply and generally assumed that 90 % of the electrical power supplied means heat (heat radiation, heat conductivity, convection), and only approximately 10 % is radiation in the visible range.

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Fading effect

Question

What about the fading effect of the light from halogen lamps?

Answer

First it must be pointed out that the fading of coloured objects, such as textiles and leather goods, cannot be reduced solely to the radiation properties of the lamp in the UV range. On the contrary, the radiation in the visible range must also be observed. In addition, other influencing factory also play a major role. These include the level of the illuminance (with how many lux an object is illuminated), the duration of the exposure (how long an object is illuminated) and last but not least the colour fastness of the textiles and leather goods, whereby additives can also trigger colour-changing effects when radiated with light.
During the past several years OSRAM has drastically reduced the radiation in the ranges UV-B and UV-A with various measures on the lamps and/or the material, and UV-C radiation was not present in measurable amounts anyway. This concerns the halogen lamps for general lighting without and with a reflector. With the new DECOSTAR IRC cold-light reflector lamp (with cover glass), the side effect still exists that the IRC coating of the burner (integrated lamp) absorbs radiation below 390 nm so that UV-C and UV-B radiation does not exit, and UV-A radiation is drastically reduced. The same also applies to the HALOSTAR IRC pin base lamps.
The DECOSTAR IRC lamp is therefore particularly also suitable for critical applications, but it should always be noted that here the luminance and starting time, as well as colour fastness play a major role. Less light is better here (lower illumination level).

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Operation with direct current (DC)

Question

Can halogen lamps be operated with direct current?

Answer

Halogen lamps can generally be operated with direct or alternating current. Since the lamp life normally depends on the temperature of the filament and the power consumption of the lamp, there is no significant difference in the actual performance or lamp life.

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Radiation of meat

Question

Are there halogen lamps for radiating meat?

Answer

No.
However, by using filters it is also possible with halogen lamps to make meat appear even fresher. But halogen lamps produce considerably more heat than fluorescent lamps with the same brightness.

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SPower impulse at the end of the life span

Question

Is it true that halogen lamps get a power impulse at the end of their life span?

Answer

Yes, it occurs with all lamps, independently of the manufacturer, with low voltage as well as with mains voltage lamps.
With low voltage of 24 volts and with mains voltage lamps a fine fuse on the secondary side is laid down by law; which should safeguard at least 50 % above the specifiable power!

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Short service life

Question

What leads to a short service life for halogen lamps?

Answer

Shocks, exceeding the maximum permissible temperatures and overvoltages.

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Starting current

Question

How high is the starting current for halogen lamps?

Answer

Incandescent lamps and halogen lamps are virtually equal in their starting behaviour. During switch-on the still cold tungsten filament has a different resistance than at operating temperature, i.e. the starting current is considerably higher than the current that flows during lamp operation. However, the high starting current drops off within just a few milliseconds.
Here are a few values for some wattages of the HALOLINE 230 V high-voltage lamps for orientation purposes, calculated once and supplemented with measured values, whereby on the whole good agreement is achieved.
 

For halogen low-voltage lamps, the starting current is dependent on the type of transformer. It differs for different electronic transformer designs, however is generally very low. For example, the OSRAM HTM 150 transformer with a lamp load of 150 W has a maximum mains starting current of just 1.1 A.

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Technical light levels

Question

How are the technical light levels changed with the dimming of halogen lamps?

Answer

A change of voltage on 5% dimming has the following effect:

• Half, resp. double the life span
• 15 % change of light power
• Longer life duration
• 8 % change of performance
• 3 % change of current
• 2 % change of colour temperature

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Use outdoors

Question

Can halogen lamps also be used in the open or outdoors?

Answer

Yes, in conjunction with suitable luminaires for outdoor use. It is usually assumed that, like PAR lamps, halogen reflector lamps with a cover glass can also be used without restrictions outdoor. This is not possible with DECOSTAR and HALOPAR lamps. The reason for this is that the cover glass of these small lamps is not completely bonded, as a certain space for the avoidance of overpressure must be present in the reflector area. This then enables the entrance of water when the lamp is subjected to the weather outdoors.

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Advantages of halogen light

Question

What makes halogen light different?

Answer

Halogen light is brighter and more intense than the light from incandescent light bulbs. It lends a sense of modern elegance to the room and creates fascinating lighting effects. This is achieved by adding a small amount of halogen gas to the bulb.

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Disposal

Question

What is the best way to dispose of halogen lamps like the HALOLUX CLASSIC?

Answer

Halogen lamps can be put in the normal household rubbish.

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Other advantages of HALOLUX CLASSIC

Question

Along with more brightness, do HALOLUX CLASSIC lamps offer other advantages?

Answer

Yes, HALOLUX CLASSIC lamps produce up to 20% more light and last up to twice as long as conventional light bulbs. This not only gives you brighter light, it means fewer replacements because halogen lamps don't fail as often.

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Other manufacturers

Question

Is this product available from other manufacturers?

Answer

No, these products are only made by OSRAM, one of the world's leading manufacturers of halogen lamps.

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Other versions

Question

Are HALOLUX CLASSIC lamps available in versions other than those described here?

Answer

HALOLUX CLASSIC lamps are available in 40W and 60W versions designed for standard E27 or B22d sockets. These are the most commonly used incandecent lamps.

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Replacing incandescent light bulbs

Question

Can I replace any conventional light bulb with a HALOLUX CLASSIC lamp?

Answer

Yes, most conventional light bulbs in a standard E27 and B22d socket can be replaced with a HALOLUX CLASSIC lamp, which uses the same type of socket and is the same size as an incandescent bulb. However, you should always observe the maximum wattage of your luminaire.

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Base designation GX5,3 / GU5,3...

Question

What is the difference between the bases GX5,3 and GU5,3?

Answer

The base GX5,3 was formerly used for low-voltage halogen reflector lamps for general lighting, and later it was replaced by GU5,3. Here the letter U stands for a version with mechanical holding of the lamp in the lampholder system. For example, the DECOSTAR lamps from OSRAM have a groove in the base area for engaging the holding spring present on the lampholder. However, it is important that the pin spacing and the pin diameter is the same for both base types GX5,3 and GU5,3.
 
The same procedure as for GX5,3/GU 5,3 has also been used for the small reflector lamps, i.e. GZ4 became GU4, and here as well, the pin spacing and pin diameter are the same.

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DECOSTAR 13,2 V operating voltage

Question

What happens when the DECOSTAR 51 IRC is operated at 13.2 V?

Answer

Operation with 10 % overvoltage reduces the service life by approx. 75 %.

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DECOSTAR temperatures

Question

How hot do DECOSTAR halogen lamps become?

Answer

The resulting temperature of the lamp is mainly dependent on the design of the luminaire (open, closed). However, OSRAM specifies temperatures in the freely burning state (without luminaire) in its technical information sheets as an aid or for orientation purposes. However, these temperatures generally differ very greatly from the temperatures that result in the luminaires. Nevertheless, the limits on certain lamp parts that are approved for the lamp in the luminaire and in the application area as maximum values in accordance with the standards IEC 60357 and IEC 60432 are important. For orientation, some values for the DECOSTAR TITAN 51 mm dia., 50 W lamp are given below:
 

Due to the low lamp wattage, a 35 W also has lower values at the specified parts of the lamp. For example, they are approximately 20 ° C lower at the reflector and glued joint measuring points. For the user, the specification of the luminaire manufacturer is therefore always decisive, i.e. which lamp wattage is approved and what must be observed during installation, as the specifications for the system (luminaire with fitted lamp) always apply.

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HALOSTAR frostet

Question

Is the HALOSTAR (64415S) available in a frosted version?

Answer

Yes, the Order No. is 64415F .

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Lamps in heat-insulated ceilings

Question

Which cold-light reflector lamps can be used in heat-insulated ceilings?

Answer

Generally, this kind of specification must come from the luminaire manufacturer, as the luminaire determines the installation possibilities with its technical design. At the installation site the hollow space should be as large as possible and the heat insulation cut out if necessary, as cold-light reflector lamps give off 66% of the heat produced toward the rear, i.e. into the ceiling space. Low lamp wattages are always better. Here the DECOSTAR IRC can be used to an advantage, as its wattages of 20 and 35 W have the same luminous intensity as the 35 or 50 W DECOSTAR S respectively. In critical situations the lamp DECOSTAR ALU can be used as an alternative. It gives off only approximately 15 % of the heat generated toward the rear.
It is available in 20, 35 and 50 W/38 ° WFL. The DECOSTAR ALU has no cover glass. Due to the integrated low-pressure burner, operation of this lamp complies with the standard even without a cover glass.

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Serial circuit

Question

Can halogen lamps be operated in serial circuit?

Answer

Serial circuiting for halogen-NV lamps is not recommended. The electric current flowing through the individual lamp is not determined by the individual lamp, but through the total resistance of the row of lamps. In this process those lamps are operated with overload, which - with constant provision voltage - gives a lower efficiency uptake
Consequence: Shortened life span!

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Starting current

Question

How high is the starting current for halogen lamps?

Answer

Incandescent lamps and halogen lamps are virtually equal in their starting behaviour. During switch-on the still cold tungsten filament has a different resistance than at operating temperature, i.e. the starting current is considerably higher than the current that flows during lamp operation. However, the high starting current drops off within just a few milliseconds.
Here are a few values for some wattages of the HALOLINE 230 V high-voltage lamps for orientation purposes, calculated once and supplemented with measured values, whereby on the whole good agreement is achieved.
 

For halogen low-voltage lamps, the starting current is dependent on the type of transformer. It differs for different electronic transformer designs, however is generally very low. For example, the OSRAM HTM 150 transformer with a lamp load of 150 W has a maximum mains starting current of just 1.1 A.

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Comparison to incandescent lamp

Question

What advantages result from the replacement of 230 V incandescent lamps with corresponding halogen lamps?

Answer

Halogen lamps have three major advantages compared to incandescent lamps of the same wattage:

• Higher luminous flux,
• Longer service life,
• Hardly noticeable reduction in luminous flux.
• In addition, the light of the halogen bulb is more brighter.

The following table contains a comparison of major data using an example:
 

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