I'm sure the Tello can fly with these no problem. My Tello is grounded until the Lubrica Metallica arrives, so I can't test it for you.Do these exist in mini format for the 85 gr Tello and easy attachable?
If you are looking for these in Europe, you can order them directly from the producer (Flytron) in the UK: STROBON Cree® Standalone - FlytronSuper solution! One problem though:
White Flytron Strobon Cree by Strobe Light for Drones DJI Mavic Phantom Inspire 1 2 Matrice Spark Drones FAA 107 …
Currently, there are no sellers that can deliver this item to your location.
But I will search for it in Europe.