This lamp by OSRAM uses the LEDVANCE trademark, implying it is an LED replacement for fluorescent tubes. I repair LED bulbs (and tubes but broken ones are still rare) as a hobby, and while going through bins I have to avoid fluorescent ones (even CFLs in fancy globes). Welp, there goes my yet-flawless way to tell: “if it says LED, it’s LED”. I really need to shine through most of them! Shining a light through this one reveals nothing inside but a heated electrode at either end (aside the phosphor coating, and a gas mixture including a little mercury vapor), the normal components of an FL tube. LED tubes would include a driver and an LED strip (and usually a PTC at the other end). I mainly use the method to reveal the kinky or twisty tube of “sneaky” CFLs with milky balls.

Also, the company took a while to leave Russia but at least they did