High Lumen ≠ High Glare

July 30, 2017

Glare is difficulty seeing in the presence of bright light. So, it is very important to have a low glare fixture, especially when the lumen is high. Low glare becomes very important for seeing the task clearly and for not hurting human eyes.
UGR (unified glare rating) is a measure of the glare in a given environment. For working space, the maximum UGR is 19, lower the UGR, more friendly the lighting environment to human eyes.

Especially in SSL, it is not easy to make a design with high lumen, high efficiency and yet low glare. To achieve this, KALAR High-Bay series deploy three optical parts for glare management. First of all, a curved glass lens is used to reduce direct glare. Second, a deep reflector is added to recess the luminance hot spot to further reduce glare. Third, an optional diffusive front cover can be added to modify the light pattern again.

In summary, KALAR High-Bay series presents very good UGR performance, ranged from 16~19 (compared to most market available products are in the average of 22~23). This high bay is the right choice for your big working space, which has high lumen, high efficiency and low glare.





Also in Technical Discussion

It is very important to reduce the weight

September 29, 2017

A low weight luminaire brings our customers a lot of benefits, such as :

Continue Reading

Aggregate to higher lumen

August 28, 2017

Sometimes, people need super high lumen luminaires (e.g., 50000 lm or even more) for spaces such as container terminal, stadium, high-roof factory, storage, construction site, etc…

Continue Reading

Control lightening area

June 26, 2017

Light like Halogen, CDM and LED can easily be control by their relatively small emitting area if we want to control the area of lightning.

Continue Reading