Giesemann Teszla Evo experience?

lieberca · May 8, 2026

I just replaced my Illumagic Blaze X 90 with two Giesemann Teszla Evo lights and am having a heck of a time finding much info from users online. I got them because of the generally good Giesemann reputation and because BRS had them at a good price, especially compared to the other options I was shopping (Hydra Edge or Radion). I've got them installed and working, and have tried to mimic the AB+ settings. But does anyone have any first-hand experience with this light who can offer some assistance on their experience and the settings used? Thanks!

Chilodus · May 15, 2026

I am using these lights for 1 year now. However, I did not play around with the light settings. Using the preset mixed reef setting in the Lynk pro app.

lieberca · May 15, 2026

Thanks @Chilodus . I'm surprised there aren't more people using these, given the spectrum/coverage/price/brand reputation. So far I'm quite pleased, and have been dialing in the spectrum and PAR slowly. It's only been a few weeks, but it does seem my acros are coloring up a bit. How have your corals responded to the lights over the last year?

Matt144 · Monday at 5:41 PM

Has anybody had a chance to get or find real world par numbers on this unit?

lieberca · Tuesday at 12:48 PM

I measured mine after install, so at lower intensity levels (70%) to start acclimation. Got around 300 PAR in the top 6", around 150-200 PAR at 16" depth (my sandbed). I increased intensity 5% per week or two and am now up to 100%, and haven't measured the PAR but my acros have definitely colored up better and grown. I'd guess I'm getting ~400 PAR up top, and there's also option to overdrive. Big fan of these lights, and happy I took one for the team! The app is not my favorite (acclimation mode doesn't work, confirmed with mfr, and setting intensities is slider only) but I'm ok with that

Matt144 · Tuesday at 1:02 PM

Appreciate the post!! I’ve resorted to watching translated subtitles of German videos trying to get a grasp on par. I’m picking one up on Thursday

lieberca · Tuesday at 1:10 PM

Haha, yep I did some of the same since there's pretty much nothing else out there on these. Curious to hear what you think after you hook it up! I was a fan of my Ilumagic, but like these even more. Looks nice above the tank, love the color and coverage, and the corals do too. Finding a mounting arm was tough, but I figured out a clean solution.