High bay lighting fixtures are designed for areas up to 6 meters high. It is usually used to illuminate areas 6-14 meters high. These luminaires provide good lighting in high places with special light distribution. High bay lighting fixtures use aluminum reflectors or special lenses to direct the light towards the place. In the case of high ceiling lighting, the illumination of the floor and working plane as well as the illumination of the vertical surfaces are concentrated. Illumination of vertical surfaces is especially important in areas such as warehouses where rags are taken. Common areas of use are industrial and commercial lighting applications such as maintenance rooms, warehouses and hangars.