The following types of lamps can be installed in spotlights:

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The following materials are used to make the body:

metal;
plastic;
glass;
ceramics;
gypsum, etc.
They are decorated with crystals, stained glass, wooden elements, crystal, etc.

incandescence;
energy saving (fluorescent);
halogen;
LED, etc.
Incandescent lamps are a budget option, but have a number of disadvantages. They have to be changed every six months, and strong heating of the housing can negatively affect the condition of the ceiling. One lamp with a power of 40-60 W illuminates 2-3 sq. m. of area.

Fluorescent lamps do not actually heat up, consume five times less electricity than incandescent lamps, with equal light output. But it takes some time for them to light up.

Halogen lamps give off bright light immediately after being turned on, their service life is from 2 to 4 thousand hours, they consume little electricity, but they do heat up.

LED chandeliers and lamps have clear advantages over other types, since they are designed for 50 thousand hours, consume a minimum amount of electricity, provide a iran mobile database light flow without flickering even during power surges, and do not heat up significantly during operation.

LED and halogen light sources with a power of 12 W require the installation of mini-transformers.
Manufacturers offer electronic or induction transformers. You can install a separate transformer for each bulb or for separate groups.

Functions
Built-in lighting sources perform the following functions:

addition to general lighting;
decorative element;
the main source of light.
To draw attention to certain parts of the room or to zone spacious rooms, spotlights are installed as additional lighting. From the point of view of the decorative function, some models create original lighting effects during operation. When organizing general lighting of the room, it is better to install lamps in groups.