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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