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What makes you think the lenses are not good?
Because it's a 1/1.5" sensor (3.93 crop factor) at its widest focal length and 1/4.5" at it's narrowest, with an f/2.2 lens, which means a relatively small ~3mm aperture which will necessarily yield muddy pictures, similar to most point-and-shoots?
Maybe you can, at least, put the 2nd UPS on a different phase (if L-N connected like 120 volts in NA or 230 volts in EU) or phase pair (if L-L connected like 208 volts in NA or 400 volts in EU if that's a step-down UPS). That way you have a chance of ridding through single phase outages which sometimes happen.
Some big caveats to this:
In North America, residential power is "split-phase" which is still considered single phase - it is a pair of hot wires delivered to you, with neutral off the center tap of the transformer on the pole, tied to ground at the service entrance. It's actually very rare for just one of those phases to die (I have yet to see it happen), as it would require a break in one of the hot wires running from your house to the pole. These are low voltage lines so they are typically bundled together, so if run aerially, a tree would snag both of them at once, and if underground a flood would damage both at once. A dead transformer or a dead power line anywhere upstream of the transformer would kill power to both.
Three-phase failure modes often leave you with only one phase out of three working, but never two. This is regardless of whether you are drawing phase-to-neutral power or phase-to-phase power. Imagine the phases of a three-phase system as three dots in a triangle, and the connections between those dots are the power you can draw. If one of the dots goes away, you're left with just one remaining connection between the remaining pair of dots. Remember the neutral is only generated locally at the transformer, so it does not provide any sort of redundant path for anything outside of the building.
Not in the last 7-8 years it hasn't. I tried for 3 hours on the phone to get a laptop hard drive replaced under next-business-day warranty. They wouldn't budge, because I couldn't produce the output of the diagnostic tools that were loaded *on that hard drive*. In the end, we got the replacement drive when they felt they could get around to it.
These days, there's little point to getting a hot-swap RAID server from Dell, because to get a replacement drive from them they will ask you to take the server offline and run the diagnostic checks on it. This is a far cry from 10+ years ago when I got replacement drives via UPS SonicAir over holiday weekends.
There's actually a pretty good range of ultra-wide APS-C lenses now. Canon has a 10-22mm. Nikon has a 10-24mm. Sigma has an 8-16mm, a 10-20mm, as well as circular and diagonal fisheyes. Tokina has a 11-16mm. Tamron has a 10-24mm. There's others. They're very proud of them too, judging by their prices.
I went a cheaper route and got the Samyang 8mm fisheye. When I want rectilinear output, I convert it with hugin.