5 types of LED Floodlights
5 types of LED Floodlights
Specifications of lighting fixtures
Types of LED lights Ceiling type
Specifications of lighting fixtures of their various types and components Lighting Fixtures Specs
1- Recessed ceiling
– The dropped ceiling is used if there is central air conditioning in the project or as an aesthetic form, which is made of tiles
(30*60 cm), (60*60 cm), or (30*120). cm) or (60*120 cm). The tiles under the concrete ceiling are usually 80 cm apart.
– It is preferable that the size of the spotlight be equal to the size of the tile.
– The height is the height. The floor minus the height of the falling ceiling.
Lighting Fixtures Specs
5 types of LED Floodlights
2- Ordinary flat ceiling (concrete) ceiling Surface mounted
Lighting Fixtures Specs
3- Suspended mounted ceiling
The suspended ceiling is used in factories, mosques and malls, so that the ceiling height
6 m – 8 m – 12 m – 14 m ——— and so on
Lighting Fixtures Specs
5 types of LED Floodlights
4- Gypsum board ceilings mounted ceiling
It will be a suspended ceiling, but made of gypsum, and it descends 80 cm like recessed, but it is weaker and cannot withstand heavy spotlights, so it is preferable in gypsum ceilings to use LED spots (Spots). Because it is lighter than other lamps
Lighting Fixtures Specs
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The diffuser cover (diffuser)
The diffuser takes the light and begins to distribute it in the place to be illuminated.
Opal prismatic floodlight cover (diffuser)Diffuser Types Opal diffuser– The surface of the cover is smooth and is used to protect against water and steam because the percentage of water and steam accumulation on the smooth surface is low.< /span>Opal diffuser Opal diffuser– It is preferable to use lamps with an opal type cover in bathrooms, kitchens and swimming pools
Prismatic diffuser
– The surface of the cover is rough and is used to protect against dust because the rate of dust accumulation on the rough surface is low.
– It is preferable to use flashlights with a cover Prismatic type in garages, warehouses, and electrical rooms as protection from dust and car exhaust.
Prismatic diffuser
Prismatic diffuser
The body of the floodlight Housing material
Housing is the body of the floodlight and contains the bulbs inside it
The body of the floodlight Housing material of luminaires
Housing material of luminaires
Luminaire type searchlight
The body of the spotlight is made of sheet metal coated with ” ;electrostatic ” To protect against rust
Sheet Steel with internal and external electrostatic coating
Luminaire type flashlight
Luminaire flashlight
Spot flashlight
The flashlight body is made of die-cast aluminum.
Spot Luminaries
Reflector or (Mirror)
Reflector (Mirror) is located behind the bulbs and consists of vertical beams And horizontally, it reflects the light falling on it and directs it towards the ground
The searchlight must contain a mirror and a cover so that the light is distributed well
– In the absence of a mirror
the light is concentrated below the spotlight only
– In the absence of a mirror
the Good distribution of light
Floodlights have three types of mirrors:
Types of mirrors in floodlights
Types of mirrors used in floodlights< /span>The degree of protection for the floodlight (IP (ingress protection)
The third type, C8-VH, is considered the best and most in demand because it will reduce the number of floodlights required due to its high quality in spreading and distributing lighting
This means the degree of protection of the flashlight against dust and against moisture or liquids
IP xy x : against dust (0:6) y : against moisture (0:8
One of the most popular IPs used for floodlights
IP20 (without cover) and is used in rooms that have a door and window.
IP43 or IP44 and is used in areas exposed to dust and water
IP54 or IP55, used in kitchens and bathrooms
IP66, used in street lighting and garages
IP68, used in swimming pools
Throttle coil type
Ballast = Gear = Driver
Types of Ballast
Magnetic Ballast
(Magnetic = HV (high voltage
Because the ionization of the gas inside the detector is through high voltage
(P.f (power factor) = ( 0.4 – 0.6
It is characterized by the following: -:
– Less Lifetime
– Less Price
Trans Magnetic Ballast’s flashlight
Electronic = HF (high frequency)
Because the ionization of the gas inside the detector is through high frequency
P.f (power factor) = (0.9) – 0.97)
Therefore, this type is preferred even though it is much more expensive than the first type, as its power factor is high, which results in a significant saving of lighting loads
and it is characterized by the following – :
high Lifetime –
higher Price –
Trans Searchlight Electronic Ballast
Electronic Ballast< /span>
Color Temperature
It expresses the nature of the color of the light coming out of the flashlight. Is it Warm (warm), Cool (cold), or Daylight? It is expressed in Kelvin (K). ) Kelvin, which is divided into:-
color temperature of the flashlight
Types of LED headlights
Color Rendering Index (CRI) for the flashlight
It is a factor that expresses the extent to which the bulb is able to show colors to objects compared to sunlight.
In other words: it expresses About the ability of the bulb light to show the true colors of things, and the higher the factor, the greater the true colors are seen. It is symbolized by the symbol Ra
where for the sun Ra = 100%
and these are values Factors for different types of lamps:
for incandescent & Halogen lamps Ra = 100%
for fluorescent lamps Ra = 85%
for high pressure sodium lamps Ra = 25%
for low pressure sodium lamps Ra = 45%
for Metal Halide lamps Ra = 70% – 90%
for LED lamps Ra = 70% – 90%(CRI) for Fluorescent Lamps
5 types of LED Floodlights
Color rendering index for Fluorescent Lamps
Lamp Efficacy
Lamp Efficacy = output / Input = Light / power
The unit of measuring lamp efficiency is (Lm / Watt) Lumen/watt
for LED Lamps —- Efficacy = 100 Lm/Watt
meaning every watt of power The bulb produces 100 lumens of light (100 Lm)
– Note: The flashlight is distinguished by two efficiencies… Lamp efficiency and Luminaire efficiency, where it is
Efficacy of Luminaire › Efficacy of Lamp
Due to the presence of losses in the light coming out of the searchlight, the overall efficiency of the searchlight will be less than the efficiency of the bulb itself, as part of the bulb’s light is lost after it leaves the searchlight
Dimming lighting intensity control
It is the property of controlling the lighting intensity by changing the voltage
It is a property available in LED bulbs and not available in other lighting sources except for filament lamps
– There is a term called DALI (Dimming Addressable Light Index)
which means the extent of the Dimming capability of the lighting source, and it is specific to the Supply
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5 types of LED Floodlights
NB :
Louver = Mirror
Louver
Louver
CPC = Conealed profile ceiling
5 types of LED Floodlights
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