High Bay Lighting Fixtures | LED Low-Bay & High-Bay Lighting | Commercial & Industrial LED Light

4 things of LED High Bay Light you must know before purchase anything

Super bright and high light efficient LED high bay light designed with quality and light weight.

There are vary LED high bay lights in the market, how to find the best and most cost-effective one?
You come to the right place to learn this, you will learn quickly through below high bay light technology. You will distinguish the difference among the vary products in the market.

A good LED high bay light must provide a high quality light and cost lowest power.What is the high quality light? High quality light should include uniform output light so that people will feel comfortable, the scientific optical and electrical design to provide for significantly reduced glare and superior light distribution.

Uniform output light is not enough, the color rending index must higher than 80, the higher RA value is, the more real color of the world will be. However, in some application, RA value less than 80 is acceptable.

Beside the quality light, the light construction-light shape,especially,the inner construction of thermal management must perform well with LEDs and outer construction for heat dissipation. Regarding for the outside construction-housing shell and lens, the LED high bay light is usually required IP65 waterproof rate, the lens should have efficient light transmission higher than 90% (clear lens), and 85% (frosted/milky lens).

What’s more, the best LED high bay light must has the highest luminous efficiency (lumen per wattage), in that way, the light will cost the lowest energy based on the same brightness.

Let’s see below specifications created by Gorgeous Lighting Co.,Ltd.

Chapter #1 LED Source

Feature #1 LED Type

Feature #2 LED Brightness

Luminous Flux

Luminous Intensity

Feature #3 LED Light Color

Feature #4 LED Lifespan

Go to Chapter #1

Chapter #2 Energy Specifications

#1 Luminous Efficacy

#2 LED Driver

Efficiency

Lifetime

#3 Dimming function

Go to Chapter #2

Chapter #3 Characteristics

#1 Light Construction

Light Shape

Thermal Management-Heat Sink-heat dissipation

Safety issue

#2 Installation-Lamp base/socket

#3 Dimensions

Go to Chapter #3

Chapter #4 Warranty & Support

Go to Chapter #4

 

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Chapter #1

LED Source

Feature #1 LED Type

Mainly three types of LED source:

1.COB LED, Chip on Board (COB) high bay luminaires. Bridgelux is the famous brand among the COB LEDs. This type is the most popular one during these years, well, is it the best one? Let’s see the luminous efficiency of COB LED, normally, it is from 65-85 lumen per watt, it is not good enough for being the best LED high bay light.

The beam angle for COB LED is usually narrow from 35-90 degree, due to the requirements of anti-glare, the light source will be put inside of reflective aluminum cover. However, it is the cheapest solution among the three types.

 

2.SMD LED, the manufacturer adopt many super bright SMD LEDs such as 2835, 5050,etc. Most of the bay lights from Gorgeous Lighting Co.,Ltd. are produced by SMD type.LM-79, LM 80 tests and reports are performed in accordance to IESNA standards.

What is the difference between COB and smd cree led high bay?

COB version LED high bay light usually made in several pieces COB LEDs integrated in one board, the LEDs are placed in the center of the light, the output light from one point is very strong, it will be uncomfortable for people that one place is too bright.

However, SMD LED version is different. We install many pieces of SMD LEDs in the aluminum plates, and made these LEDs being a light surface rather than just a point. The output light is more uniform, and the luminous efficiency is the highest among the three types.

 

3. High Power LED,such as 1*3w,1*1w are the general light source for street light and tunnel light, high bay light is made with high power led as well. The light distribution of high power LED version bay light is similar to the SMD type, however, the price for high power LED is usually much higher than the SMD one, and the requirement for thermal management is higher for high power LED, which produce higher heat than SMD version.

 

Feature #2 LED Brightness

Luminous Efficiency Comparison

1. COB LED: Luminous efficiency is around 65-85lm/w, the maximum lumen is 85lm per watt.
2. SMD LED: Our patent SMD 5050 LED provide 100-130lm/w, which is much higher than COB one.
3. High Power LED: It’s light efficacy usually between 80 to 120 lm/w.

Luminous Flux is one of the value shows how brightness the LED high bay light will be. It is obviously that the luminous flux (unit:lumen) is determined by the LEDs. Which type of LED will be applied, how many LEDs will be used and what is the power efficiency? I will clarify the power efficiency later. Anyway, LED type and the quantity are two of the main factors determine the brightness.

Luminous Intensity (unit:lux):

Intensity is like brightness, and is measured as the rate at which light energy is delivered to a unit of surface, or energy per unit time per unit area.

LUX is the unit of illumination intensity, which is another measurement of light.

Just because a high bay light has a higher lumen output, doesn’t mean it will “appear” brighter when you look directly at it. Looking directly at the source of light will tell you the lux, or amount of light that specifically reaches your eye. Some LED high bay lights are designed with projectors to focus the light in one direction, and that will make them very bright in one direction, or a high lux, but from another angle, the brightness will decrease sharply.

Feature #3 LED Light Color

The material used in the semiconducting element of an LED determines its color. The two main types of LEDs presently used for lighting systems are aluminum gallium indium phosphide (AlGaInP, sometimes rearranged as AlInGaP) alloys for red, orange and yellow LEDs; and indium gallium nitride (InGaN) alloys for green, blue and white LEDs. Slight changes in the composition of these alloys changes the color of the emitted light.

Warm white(2700-3500K) can be used when people need comfort, ease and warm surroundings. It is widely used for living rooms, bedrooms, lobby and hallways.

Natural white (4500-5500K) and Cool white led light (6000-7000K) for outdoor and task lighting, office building, Bathrooms, school and public area which need bright light.

However, there is a study showing that, warm environments don’t just make us more productive – they also make us happier. In my opinion, the color temperature under 4000K can be used for some places need warm surroundings(I call it relaxing area), and the color temperature 5000-5500K can be used for work or study area, the color temperature above 6000K can be used for the area where needs the brightest light.

Bi-color led strip light: normally not bright enough for task lighting, it is a good supplementary lighting. The RGB color is also mainly for decorative lighting purpose, which is mainly adopted as the decorative lighting for entertainment venues.

As for LED high bay light, most of the lights are installed in warehouse, workshop, exhibition building, which generally require the color temperature in 6000K-6500K cool white.

 

Feature #4 LED Lifespan

COB LED, the manufacturer of COB led claimed it is unto 50,000 hours same as SMD LED and high power LED. If we take the light decay into consideration, COB LED has higher rate of light decay than the other two types.

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Chapter #2

Energy Specifications

#1 Luminous Efficacy

Higher luminous efficacy means higher output brightness or cost less energy. Just as mentioned above, COB LED is around 65-85 lumen per watt, SMD LED is from 80-130 lumen per watt, different manufacturers have vary luminous efficacy, our LED high bay light has highest luminous efficacy up to 130lm/w.

#2 LED Driver

Power Efficiency

The power efficiency of a good LED driver should be more than 85%. The higher power efficiency is, the less power consumer will be.

There are several benefits to use high-efficiency LED drivers. The first thing is saving more energy, low the cost, (according to above calculation method for the power of led driver). In some applications, the cost saving can be more significant if taken into account the losses in the utility line and the reduced energy consumption of the air conditioning system (if the lamp is used indoor Energy savings in high efficiency drivers can be quite significant over the life of the driver. (Read more please click LED Driver: The Definitive Guide)

Gorgeous Lighting Co.,Ltd. adopt the high efficient LED driver more than 85% as the power source for LED high bay light.

Lifetime

The average life expectancy of most LED drivers is around 50,000 hours. LED drivers protect LEDs from voltage or current fluctuations, as a result, if there has a problem with LED driver, it will damage LED light. If the driver or power supply provides a current or voltage that is too high, LEDs will suffer overdrive and will either fail short of their lifespan.

#3 Dimming Function

LED dimming performance is determined by Driver capability and compatibility with the dimming equipment. Multiple compatibility issues are rooted in circuit level interactions between the LED Driver and dimmer. Good LED dimming solutions are available today. Dimming can reduce energy consumption and enhance a space’s function.
Drivers can enable dimming and color-changing or sequencing of LEDs. LEDs are easily integrated with circuits to control dimming and color-changing so that these functions can respond to preset commands or occupant presence or commands.

The two main dimming methods for dimming the LED lights:

1. Coincident AC power and control signal:
   Phase-cut AC sine wave
   a. Forward Phase Control Dimming (Triac dimming, Leading-edge or SCR dimming)
   b. Reverse Phase Control Dimming (Trailing edge dimming)
2. Separate AC power and control signal
   1) 0/1-10V
   2) PWM signal,
   3) Dali (Digital Addressable Lighting Interface)
   4) DMX512

We are able to offer led drivers with vary dimming function. Perfect dimming performance: As for led driver with dimming function, the light should have no flicker, and high compatibility with installed dimmers.

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Chapter #3

Characteristics

#1 Light Construction

Light Shape

Round is the most common shape of bay light, which is just like the traditional Metal Halide lamp. The square shape high bay light is also very common now, the distribution of the light perform better to have an uniform output light, due to the light will be installed in the application places, in which usually are square.
Gorgeous Lighting Co.,Ltd.,not only produce the light in round shape but also the square version, and we will develop more and more led high bay & low bay light in square shape. (In the USA, it is known as LED troffer light).

 

Thermal Management-Heat Sink-heat dissipation

As we know, overheat will cause the problem of light decay, thus, it will reduce the lifespan of LED light. For this reason, heat dissipation is very important to have a lifelong working of luminaire. At the beginning, as for the light construction,we put the thermal management in the first place, as a result, our thermal management perform very well by working with our scientific heat sink.

In addition, our heat sink are all made from quality aluminum to ensure the good conductivity of heat.

Safety issue

Our light products have been EMC,LVD,RoHS,FCC,VDE,GS,UL approval. (UL,VDE certificates have been applied by our customers). The light is in aluminum housing, which is anti-corrosion,waterproof IP65 rate.
#2 Installation-Lamp base/socket

The round LED high bay light has hook on the top of the light, so that it can be installed same as original one. We also provide the steel accessory for surface mounting.

The square bay light has different installation ways, we have two types: suspension with stainless wires or surface mounting by screws.

#3 Dimensions

LED high bay lights have been developed in many different sizes to meet the requirements. The higher power of the light is, the bigger size will be. If you need more detail information, please feel free to contact us, we are always glad to help!

 

Chapter #4

Warranty & Support

We provide 3-5 years warranty for LED high bay lights to our customers. Any after-sales or technical support, please do not hesitate to contact us, we are glad to help you to be succeed.

Product List: Click to download Round LED high bay light- Product list