The Tridonic PC 2/14-21-28-35 T5 PRO lp is a low profile, non-dimmable high frequency ballast to run: 2 x 14/21/28/35 Watt T5 fluorescent tubes. Click on the pictures to the left to see a wiring diagram.

Tridonic Product Number 22185148

https://www.easy-controlgear.com/products/ledvance-osram-qtp521435-os-2-x-14-35w-t5-hf-ballast?_pos=2&_sid=a6d9854f2&_ss=r