Update: 08/08/2022 EDIT Ledstar has updated their app which fixes many issues. I had a problem with another Ledtech model. Bluetooth failed, try this, unplug the light for twenty minutes and plug back in, it should help. And make sure to download the latest update from Google Play. I had a Fluval Planted 3 Bluetooth and never had a problem so it's not a problem with my phone. I would give zero stars if I could, why? Well I did an experiment, I have 2 other flashlights, one is a Fluval 3.0 and an old Finnux Planted, both 30 inches long. direct change between 3 lights, that's what I saw. Finnux planted + was a little less dark but had much bolder colors. Fluval landed 3 and matched the 36" Leadstar and had no connectivity issues, overall I would not recommend this flashlight.
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