change a bulb / changing a bulb / Downlight bulb / canister light / can light / Pot light / Led

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change a bulb / changing a bulb / Downlight bulb  / canister light / can light / Pot light / Led

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A recessed light or downlight (also pot light in Canadian English, sometimes can light (for canister light) in American English) is a light fixture that is installed into a hollow opening in a ceiling. When installed it appears to have light shining from a hole in the ceiling, concentrating the light in a downward direction as a broad floodlight or narrow spotlight.


Different types of recessed lighting in a warehouse
"Pot light" or "canister light" implies the hole is circular and the lighting fixture is cylindrical, like a pot or canister.

There are three parts to a recessed lighting fixture: housing, trim and bulb. The trim is the visible portion of the light. It is the insert that is seen when looking up into the fixture, and also includes the thin lining around the edge of the light. The housing is the fixture itself that is installed inside the ceiling and contains the lamp holder. There are many different types of bulbs that can be inserted into recessed lighting fixtures, with the amount of heat generated by the bulb being a unique consideration.


MR16 lamp.
MR16 (also known as MR-16 ) is a standard format of reflector LED or halogen lamps or bulbs made by various manufacturers. They are normally used just like fluorescent lamps and incandescent bulbs in residential and commercial lighting. MR16 lamps were originally designed for slide projectors and are suitable for various applications where low to medium intensity directional lighting is required, such as path lighting, recessed ceiling or ceiling lights, desk lamps, landscape lighting, counter lighting and bicycle lights.

Names
ANSI uses the following standard codes to name different combinations of Watts and beam angle of light from MR16 lamps. Many manufacturers use these standard codes for lamps that meet the specification:

Since MR16 lamps are available in many other combinations of Watts and beam widths, they are often named according to English abbreviations for beam width degree. Although such abbreviations are commonly used, the angles associated with each abbreviation vary slightly from manufacturer to manufacturer. Typical angles associated with these abbreviations are:

MR16 lamps consist of a halogen bulb or capsule integrated with a tempered glass reflector. The reflector is 50 millimeters in diameter and 45 millimeters high. The compact size allows much smaller and more discreet mounts than incandescent bulbs prior to the MR16s.

The reflector controls the direction and aperture of the light beam from the lamp, which can vary from about 7 degrees to 60 degrees or more.

"MR" is the acronym in English for "multifaceted reflector" multi-faceted reflector, indicating that its shape is usually carved with multiple small faces, which gives a smooth edge to the illuminated area even though there are also lamps with softened reflectors that provide a illuminated area. more defined.

In economic models the reflector is covered by an aluminum layer which reflects the light while in more expensive models coating is dichroic reflecting particular frequencies of the visible spectrum in the direction which points the lamp without reflect light infrared the which produces heat, thereby reducing the heating of your target. The combination of the halogen light source and the dichroic coating makes these lamps provide a superior color rendering index and color temperature than incandescent bulbs. This makes them suitable for applications where faithful color reproduction is important such as commercial counters.

The brightness of MR16 lamps can be adjusted with suitable dimmers or dimmers, but the color temperature changes significantly.

MR16s produce considerable heat and should be handled with caution to avoid skin contact or proximity to flammable materials when they are on or have recently been lit.

Generally MR16 lamps are more energy efficient than normal incandescent bulbs but less efficient than fluorescent lamps. Its expected half-life is between 2,000 and 10,000 hours.

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