Unusual Device Startup

Can anyone assist me in identifying this device. It seems to run more at day than at night. It usually runs for a hour or more.

It looks similar to my refrigerator. You may not be picking up every on/off instance, depending on how “noisy” your home is during the day.

What’s happening at startup with all the fluctuations?

Some sort of compressor fluctuation. It’s a brand new fridge, something inherent to the design I guess.

Here’s what my fluorescent aquarium lights look like

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