OJA

OJA

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Professional Optical Design Show

About OAJ

SINCE 2012

OJA was founded in 2012 but the owner has over 19 Years of experience in design and making LED optical elements  .The technical and management team come from Germany .OJA is Specialized in providing cutomers  the Aluminum reflector ,Led lens with  the special light spot shape ( the rectangle light spot shape ,square light spot shape , polarized light spot shape ). After 7 years development ,OJA currently has  around 65 workers and plant area is over 3500 square meters . OJA has a professional team which can offer all the customer in one-stop service from optical R&D ,Production and sales .    

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2012

OJA was founded

in 2012

19 +

over 19 Years

of experience

3500 ㎡

Plant area is over

3500 square meters

60 +

OJA currently has

around 65 workers

01

Experience

Years of experience in brand industry

Those products are widely used in track light ,spot light ,down light,high bay, flash light 

01

02

Quality

Whole process control of product quality

These products are mainly for export to Asian , European and other Markets .

02

03

Solution

Full set of technical solutions

OJA is specialized in providing the customers with professional optical design...

03

04

Our Team

Professional after-sales team

OJA’S philosophy ,”Offer the professional  optical design solutions for the Commercial lighting...

04

News

lll

Professional Lighting Design

Company News Trend News
图片名称

27

2022.09

Can LED eye protection device really protect eyes?

People can only choose a desk lamp when they are reading and writing, and a desk lamp is an essential lighting tool in modern homes. It mainly focuses light on a small area to facilitate work and study. According to statistics, the average Chinese student spends 2-3 hours a day under a desk lamp, and the distance between the brain and the lamp is only 30 to 40 cm, while the World Health Organization test reports that the radiation value of high-frequency eye-protection lamps is 40UT to 400UT.

27

2022.09

Can LED eye protection device really protect eyes?

People can only choose a desk lamp when they are reading and writing, and a desk lamp is an essential lighting tool in modern homes. It mainly focuses light on a small area to facilitate work and study. According to statistics, the average Chinese student spends 2-3 hours a day under a desk lamp, and the distance between the brain and the lamp is only 30 to 40 cm, while the World Health Organization test reports that the radiation value of high-frequency eye-protection lamps is 40UT to 400UT.

15

2022.09

How to install and use LED ceiling lamp?

LED ceiling lights can not be installed directly on flammable objects, some families use three layers of plywood lining behind the ceiling lights for aesthetic purposes, which is actually very dangerous and must be insulated; if the high-temperature part of the lamp surface is close to flammable materials, insulation or heat dissipation measures should be taken.

12

2022.01

What is the national lighting standard?

For portable luminaires and hand lamps, if the blue light hazard level measured at a distance of 200 mm exceeds RG1, the symbol "Do not stare at the light source" should be clearly marked on the outside of the luminaire, as shown below. Also, the sign should be positioned so that the user cannot see the light source while seeing the sign. According to the above requirements, companies should not mark the symbol on the mounting surface or luminous surface of, for example, LED desk lamps.

16

2022.09

Which is better, LED or energy-saving lamp?

First, check whether the voltage at home is stable. If the voltage is at its peak, the voltage will be unstable. At this point, the light may not be bright enough to emit only a faint light.

07

2022.07

Which is better, LED or CFLS?

In addition to the differences in lighting principles between LED lamps and energy-saving lamps, there are also significant differences

图片名称

27

2022.09

Can LED eye protection device really protect eyes?

People can only choose a desk lamp when they are reading and writing, and a desk lamp is an essential lighting tool in modern homes. It mainly focuses light on a small area to facilitate work and study. According to statistics, the average Chinese student spends 2-3 hours a day under a desk lamp, and the distance between the brain and the lamp is only 30 to 40 cm, while the World Health Organization test reports that the radiation value of high-frequency eye-protection lamps is 40UT to 400UT.

27

2022.09

Can LED eye protection device really protect eyes?

People can only choose a desk lamp when they are reading and writing, and a desk lamp is an essential lighting tool in modern homes. It mainly focuses light on a small area to facilitate work and study. According to statistics, the average Chinese student spends 2-3 hours a day under a desk lamp, and the distance between the brain and the lamp is only 30 to 40 cm, while the World Health Organization test reports that the radiation value of high-frequency eye-protection lamps is 40UT to 400UT.

15

2022.09

How to install and use LED ceiling lamp?

LED ceiling lights can not be installed directly on flammable objects, some families use three layers of plywood lining behind the ceiling lights for aesthetic purposes, which is actually very dangerous and must be insulated; if the high-temperature part of the lamp surface is close to flammable materials, insulation or heat dissipation measures should be taken.

12

2022.01

What is the national lighting standard?

For portable luminaires and hand lamps, if the blue light hazard level measured at a distance of 200 mm exceeds RG1, the symbol "Do not stare at the light source" should be clearly marked on the outside of the luminaire, as shown below. Also, the sign should be positioned so that the user cannot see the light source while seeing the sign. According to the above requirements, companies should not mark the symbol on the mounting surface or luminous surface of, for example, LED desk lamps.

16

2022.09

Which is better, LED or energy-saving lamp?

First, check whether the voltage at home is stable. If the voltage is at its peak, the voltage will be unstable. At this point, the light may not be bright enough to emit only a faint light.

07

2022.07

Which is better, LED or CFLS?

In addition to the differences in lighting principles between LED lamps and energy-saving lamps, there are also significant differences