We often forget how much light affects us. If it is poorly chosen, it can cause fatigue, irritability, headache. These are typical symptoms of The Unpleasant Glare, which is expressed by the UGR coefficient. The lower the value, the better the light quality. SOLID achieved the UGR<16 result, which is a very good achievement. This panel is designed for installation in an Armstrong suspended ceiling in the 60×60 standard. The spaces where it is worth using the SOLID luminaire are dental offices, libraries, offices, etc.