Up for sale are 2 lights.
First is an ATI Sunpower 8x54w with bulbs. This fixture was only used for about 2 months while my Powermodule was being rebuilt. I have the receipt from Marine Depot as well as the original box it was shipped in. Bulbs that it comes with are 5 Blue+, 1 Purple+, 1...
A lot of it depends on the type of component you use as well and how big a system. My system is a 6.5 kw system using SolarWorld panels and Enphase micro inverters which are both made in the US. If I went with Chinese made components, I probably could have saved about $3000.
I've been happy with mine. It's nice to see that they do sell spare parts if ever needed. I plan to keep and extra set of roller and tubing if/when I may need them.
oversizing a skimmer isn't really the best thing to do. If it's too large, it'll skim for about a day and then there will be nothing left to skim therefore starving your corals of nutrients.
that said, take a look at the aquamaxx WS-1. it's a cousin to the HOB-1 which is a proven skimmer. If...
I have a generator. My generator is strong enough to run returns and heaters/fans for 3 tanks, my fridge/freezer, my freezer in the garage and a TV and PS4. I've had to use it a handful of times over the years and I'm very grateful purchased one.