Initially, they took one such lamp for testing at the dacha. The quality of workmanship and lighting is quite satisfied. Only 2 cm thick, does not eat up the height of the ceilings. The quality of the light is also not bad, we checked it with a mobile phone camera - the light is even, there are no flickers. As a result, we took 4 such lamps for the entire second floor and one smaller one for the corridor to the first floor.