As the LED procurement staff, perhaps you are often confused about how to pick out the high quality led lights among numerous sellers.
Here are some tips you.We should pay attention to in selecting satisfied led floodlight.
1. Raw Material
We should not merely pay attention to the design of lamp body in selecting high power led lights.
The most important aspect we should notice is the chip and power driver of the lights. Here are introduction to them.
①Led floodlight Chip: Usually there are chips from USA, like CREE, Bridgelux. And Epistar from Taiwan China.
CREE chip is the most stable than other chips. It also possesses the world’s highest market share in led chip manufacturing.
Bridgelux chip is mostly encapsulated in China.
②Led Floodlight Power Driver:The best power driver is Meanwell, as its conversion efficiencyis relatively high.
The highest conversion efficiency can reach 96 percent. The international general full range input voltage is 90-305VAC,
Meanwell’s HVG series input voltage is 180-528VAC.That is to say, it can meet the requirements of remote power supply completely.
Its safety and quality certifications include UL8750, UL1310, UL879, CE, FCC and etc. Therefore, to produce high quality led lights, our Reita company put CREE/ Bridgelux Chip and Meanwell as priority supplier in choosing light source brand and power driver brand.
2. Brightness
The brightness of led lights we often referred is total luminous flux. The unit is Lumen. Thus you
can judge the brightness through the total lumen number. The higher the number, the brighter the brightness.
However, many businesses mark the data number very high to mislead the buyers. Then how can we know
whether it is true or false? The answer is that you can ask for the floodlight’s IES file from sellers. You can
read the precise numerical value from this file. For example, you can check and compare the following items:
1). CREE chip can reach highest light efficiency to 200LM/W while other chip brand is generally 90-130LM/W.
2).The light efficiency of Reita’s led light can reach highest 160LM/W while other brand’s led can generally
reach 70-100LM/W.
3.Wavelength
You can also judge from the wavelength of led light. You may ask the calculus document from the sellers.
4. Color Temperature
Different venues require different color temperature of led lights. The color temperature includes cool white,
warm white and white. CREE chip is generally from 2800K-6500K. You can choose according to the environment
and personal preferences . Cold white led will make the whole lamp looks brighter.Reita can produce 2800-20,000K
5.Light Failure
Depending on time, the led floodlight will appear a certain loss of light. Some led light’s light failure is
particularly large, and some are relatively small. Buyers can ask for LM80 report of the led from the manufacturers
to check the light failure effect.
6. Life Expectancy
Life Expectancy is connected with the led light’s operating temperature. High power led floodlight’s operating
temperature will be higher. As long as the cooling structure designs well, the life expectancy will be relatively high.
The cooling treatment and cooling area of led is particularly important, it can be seen from the light’s cooling structure.
The cooling structure is also the decisive factor of led’s life expectancy. Thus we need to control the led chip’s temperature
less than 65 degrees to ensure the working time can reach 10000 hours. That is to say, the total lifetime can be 22 years
(8333days) if we use it for 12 hours a day. So it is no doubt that the product warranty of Reita’s led floodlight can be
5 years.
7. Cooloing Processing.
Cooling system is the most important part of high power led floodlight. The larger the cooling area, the higher the
coefficient of the cooling material. The ventilation design of the lamp body is also an important factor. As we all know,
a computer’s cooling process often requires fast heat transfer speed, small size and using fan for convection cooling.
While led light’s natural air convection emphasizes on airflow, wind direction. It means cooling area. Therefore,
the ventilation design of the lamp body is an important factor to influence led’s light efficiency, light failure
and life expectancy. In terms of this point, Shenzhen Reita Company have paid great effort
in high power led cooling structure. Reita’s exclusive four-dimensional cooling structure make the whole lamp with
good ventilation. Besides, we control the led chip’s working temperature within 65 degrees to make the light efficiency more
stable. We also have researched and developed the unique cooling structure in led industry.