This fixture is located in my workplace. This room has 10 of these T8/T12 fixtures, with instant start ballast fitted, plus 2 rapid start T5 dual-lamp fixtures. The original ballast of this fixture was replaced by a preheat program start in 2021 due to circuit failure.
The tube is made by Philips, the color temperature is 4000K.
![](https://i.ytimg.com/vi/K06BaovTrww/maxresdefault.jpg)