One of the highest quality tubes. I got it new because the building has been renovated and had LED lighting installed. The tube shines beautifully and the colors are clearly visible. There are no cathode guards.
Rare and valuable tubes. I found them thrown out last year. I brought them home by bike. They still shine, although there are traces of long-term burning.
I got this tube yesterday from electrical shop. Tube isn't used too much and has nice color rendering. It gives 2450 lm of 6500K light. It was replaced with LED tubes.