Top 3 tips for choosing LED High Bay Light
Brightness, measured in lumens, not wattage. When you are shopping for LED high bay light,
compare lumens to be sure you’re getting the amount of light, or level of brightness you want. Same
color rendering index Ra80, higher lumen output is better.
For example, to replace a 400W metal halide lamp, look for a low power LED light that gives you
above 18,500lumens.
Key Considerations
Luminaries
|
Metal Halide
|
LED High Bay Light _1
|
LED High Bay Light_2
|
Wattage
|
400W
|
150W
|
200W
|
CRI
|
Ra>60
|
Ra>80
|
Ra>60
|
Luminous Flux (Lumens)
|
20,000lm
|
18,750lm
|
19,000lm
|
Result
|  |  |
2. Light distribution and Uniformity.
The right product with same lumen do not mean provide same illumination. Different optical provide different light distribution, so choose a product that is designed to ensure precise optical control of the light distribution. Put simply, beam angle.
Light distribution vs. Illumination
150W LED Luminaries
|
60° Beam Angle
|
100°Beam Angle
|
Light distribution
|  |  |
Illumination curve
|  |  |
Installation 10m high
|
Light level: 151lx
|
Light Level: 95lx
|
LED high bay light with a narrow beam angle suitable for a higher ceiling or narrow aisles, wide bean angle are better for a open area. Recommend to installation height less than 10 meters.
3. Consider your working voltage and Frequency
The voltage and frequency of alternating current (AC) electricity used in varies from country to country throughout the world. Most countries use 50Hz (50 Hertz or 50 cycles per second) as their AC frequency. Only a handful use 60Hz. Before your purchase a LED high bay light, checking your existing working voltage and frequency. Universal voltage 85-277V AC for flexible use worldwide, but three-phase electric power are widely used in industrial facilities, the working voltage consider to 347V to 480V AC.
List of worldwide AC Voltages and Frequencies
Country name
|
Frequency
|
Voltage (V)
|
Great Britain
|
50Hz
|
Single phase 240 3-phase 415
|
America
|
60Hz
|
Single phase 115/230 3-phase 230
|
Canada
|
60Hz
|
Single phase 120/347 3-phase 208/240/600
|
Korea
|
60Hz
|
Single phase 110/220 3-phase 200/220/380
|
Taiwan
|
60Hz
|
Single phase 110/220 3-phase 220/380
|
Hong Kong
|
50Hz
|
Single phase 200/220 3-phase 346/380
|
China
|
50Hz
|
Single phase 220 3-phase 380
|
Singapore
|
50Hz
|
Single phase 230 3-phase 400
|
Malaysia
|
50Hz
|
Single phase 240 3-phase 415
|
Indonesia
|
50Hz
|
Single phase 220 3-phase 380
|
Philippines
|
60Hz
|
Single phase 115/230 3-phase 240/480
|
Thailand
|
50Hz
|
Single phase 220 3-phase 220/380
|
Vietnam
|
50Hz
|
Single phase 220 3-phase 380
|
Myanmar
|
50Hz
|
Single phase 230 3-phase 230/400
|
India
|
50Hz
|
Single phase 230 3-phase 240/415
|
Australia
|
50Hz
|
Single phase 240 3-phase 415
|
Austria
|
50Hz
|
Single phase 230 3-phase 400
|
Belgium
|
50Hz
|
Single phase 230 3-phase 400
|
Bulgaria
|
50Hz
|
Single phase 220 3-phase 380
|
Denmark
|
50Hz
|
Single phase 230 3-phase 400
|
Finland
|
50Hz
|
Single phase 230 3-phase 400
|
France
|
50Hz
|
Single phase 230 3-phase 400
|
Germany
|
50Hz
|
Single phase 230 3-phase 400
|
Greece
|
50Hz
|
Single phase 230 3-phase 400
|
Hungary
|
50Hz
|
Single phase 220 3-phase 380
|
Italy
|
50Hz
|
Single phase 220 3-phase 380
|
Luxemburg
|
50Hz
|
Single phase 230 3-phase 400
|
Holland
|
50Hz
|
Single phase 230 3-phase 400
|
Norway
|
50Hz
|
Single phase 220/230 3-phase 380
|
Poland
|
50Hz
|
Single phase 220 3-phase 380
|
Portugal
|
50Hz
|
Single phase 230 3-phase 400/480
|
Rumania
|
50Hz
|
Single phase 220 3-phase 380
|
Spain
|
50Hz
|
Single phase 127/220 3-phase 220/380
|
Sweden
|
50Hz
|
Single phase 230/400 3-phase 400/690
|
Switzerland
|
50Hz
|
Single phase 230 3-phase 400
|
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