People have had the whole story to deal with darkness. Starting from conventional fires, it came to the use of electricity for lighting. Already now there are several options for light sources. One of these is a halogen searchlight, which will be discussed in this article.
Device and principle of operation
The essence of the searchlight as such – to carry out strong lighting of a certain area. Halogen spotlight is only a special case. Its structure is pretty simple: hull, lens and lamp.
The housing can be from different materials, but most often used aluminum stainless alloy. For street spotlights with a high degree of protection against external factors, most parts are made of durable corrosion-resistant metals.
For the production of lenses in such a spotlight, the tempered heat-resistant glass is most often used. Lens is necessary in order to focus the rays of light in a particular direction. So the maximum frequency efficiency is achieved.
The main interest of the halogen device is the lamp. It consists of a balloon and a tungsten thread. The main difference from the incandescent lamp is that the “halogen” has a special gas that increases the shelf life of tungsten and improves its effectiveness. Gas is represented by halogens, from where the name of the lamps. It is inside the balloon. I was at first Ied, but later I refused it, because because of his impact on the metal, the lamp can take a greenish tint. Now in halogen lamps, bromine or fluorine is most often used, less often – chlorine. More expensive specimens have large methyl, methylene or pure bromine as a gas.
Lamps in halogen spotlights can be two types – matte and transparent. The type and type of lighting will depend on the type. And also they differ in form, for example, lamps can be linear, capsule or reflector.
Work halogen lamp is quite simple. The current passes through tungsten, heats it to the glow, after which the resulting light passes through the lens and comes out.
In comparison with the LED searchlight, halogen has several advantages and disadvantages. So, the “halogen” will be better than LED publish natural, almost sunlight. In addition, halogen searchlights have a simpler structure. LED spotlights will be halogen in economy, security and service life.
Used halogen spotlights in a variety of spheres. So, they can be installed in the country area, on public roads for illumination or the road itself, or advertising banners, as well as in large common areas.
When choosing halogen spotlights, you must pay attention to the key characteristics inherent in such goods.
Power. This is a very important parameter, since two things depend on the power – the lighting and the ability to connect to home outlets. So, more powerful spotlights of 5000 and 2000 W are able to issue strong light in contrast to the models at 150, 250, 300 and 400 W. In the middle of the model, the model includes devices by 500, 1000 and 1500 W. Do not forget that powerful searchlights will require more voltage.
Protection. On each “halogen” there is a defense rate from external conditions. For home, you can take options for cheaper with less protection, however, for street conditions, devoted devices with a high defense indicator.
Method of fastening. There are portable and stationary models. The first can work even during their transfer or movement. They are easiest to be fixed, as you just need to give them a steady position. The second type works only inpatient, so, as a rule, they are harder.
Usal scope. There are spotlights both to illuminate streets or any premises and for highlighting different banners and posters.
Additional functions. For example, a motion sensor, which notices a suitable person and automatically turns on the spotlight. Another option is the illumination sensor that analyzes the overall illumination of space and adjusts the spotlight in a certain way.
Design. If there is an opportunity, you should select a searchlight, which is very similar to the style of items around it.
And it is also worth distinguish halogen spotlights from metal halide. Both are very close to daylight light, but the first option produces a little more warm glow, and the second is colder. In addition, metal halobic spotlights differ in their greater power than halogen.
Of the other advantages of such devices, you can allocate a long service life and high protection against external factors.
Review of species
Halogen spotlights can be several different species. Each of them has its own characteristics from which the pros and cons. Having understood in all kinds, you can accurately determine which searchlight is needed to you. All types are distributed in two groups depending on the parameters that they differ.
With internal reflector. By device, this searchlight is similar to a capsule look, however, from the inside the case is made of a certain mirror, which performs two functions at once: redirects the rays into one point, and does not give heat from the light bulb quickly.
Capsule or linear type. The first successful version of the halogen searchlight, which is still sold. The case has familiar rectangular outlines. Inside there is a flask with heat threads. The peculiarity of this species lies in its high power, and, consequently, significant power consumption. For premises, linear searchlights will not fit, but for the lighting of large territories they will be needed. This species is usually attached at a high tripod or on small buildings such as stone fences. But individual portable subspecies of such searchlights are sold. They include the device itself, publishing light, and a small design in the form of a handle and legs for convenient movement.
Type with built-in external flask. In order to understand how such a searchlight looks like, you can present a conventional incandescent lamp, in which there is no tungsten thread, but a small halogen light bulb. The searchlight can have any shape, the main thing is that this device be placed there. It is important to clarify that protective external flasks can be of different design: matte, transparent and white, milk colors. Empty such searchlights are more warm light. In addition, the size is important. Due to compactness, they are used for small lamps, lanterns.
In this group distinguish two types: illuminating the premises and illuminating streets. The first look, as a rule, is not very powerful, economical.
More interest is powerful street searchlights. They are distinguished by their good protection from weather conditions. With similar characteristics there are spotlights for aquariums, however, they are more referring to the first form, as rather low-power. Street view has a large range of power. There are devices with a popular option – motion sensor. The searchlight notices a suitable person and turns on.
From all companies producing halogen spotlights, there are such that allocated among others. Such organizations produce many years this product, earning a great respect for buyers during this time. So, below is a list of the most popular brands that produce spotlights with halogen lamps.
Galad. Russian company, the most popular model of which is Galad 00436. Feature – Aluminum alloy made under pressure, as well as corrosion resistance. This model is equipped with large spaces in the city – parking, stations, stations.
Navigator. Company from China. Produces both street lighting and internal. The most successful series is NFL. It is famous for its quality.
Philips. Huge Netherlands Organization. It has a well-known Philips QVF model that is fastened to the wall. There are views by 500, 750 and 1000 W. There is a disadvantage – in the kit a halogen light is not provided.
Choosing a spotlight with one of these companies, you can get quality guarantee. As a rule, their models are more expensive. No one says that the devices of other manufacturers should not buy. It is possible to do it, but it is worth reading the reviews and study the goods carefully.
Tips for choosing
For a successful selection of the lighting device, it is worth reading some tips to help implement it.
The light bulb is very important. Matte options will give approximate to sunlight, while transparent will appear yellow.
To illuminate rooms in the house it is better to purchase internal devices, as they have less costs, and, on the contrary, for lighting the street it is worth making more powerful and costly devices.
It is important to pay attention to the degree of protection of street spotlights. In cheap models, this indicator is very low, which can lead to a quick failure.
If possible, it is better to choose a design suitable for interior design or exterior.
It is advisable to purchase goods a proven manufacturer, as there will be more guarantees that the searchlight does not burn a month after the purchase.
How to install and connect?
If the installation involves mounting the wall, then you should designate the desired place with a pencil or knife, and then drill holes for fasteners. In other cases, for example, on a tripod, fastening will be easier.
After that, the device must be connected. It is done simple, you just need to operate on points:
Remove the back cover, we find a small device called the contact box;
We carry out the connection cable through it;
fix it with the help of clamps;
Close the cover.
As soon as everything is done, you should wipe the flask with alcohol from extra tracks, in particular, fingerprint. You can do it by removing the front cover.
Halogen spotlights can be excellent replacement with outdated spotlights with incandescent lamp. They have an interesting device and some features in choosing.
However, such devices are still inferior to more modern LED spotlights.