If you want something just for maintenance try the safers soap. It's mild on a plant,, more refreshing if raised.. It's got a fatty acid in it that will remove residue and dust/dirt used as a wash. But you don't have to rise either.. Just use like 3/4 strength if you don't have a problem.
Yea is a good time of year to grow... Temps can be managed abit better.. I forget the area you got,, but you can't beat a big HID light for flower,, least I haven't yet.. But then I only bought a good hood, and a hid setup, which is cheap, I do see great crops from LEDs. But most of them are costy setups.
Hell, I still got one of the first 1000 watt magnetic ballasts I ever bought damn thing has to be over 30 years old and weighs a ton,, but I know it will fire the first time every time. That ballast has gone threw alot of bulbs over the years,, but bulbs are cheap too.. Unless you get way into it.. I get the cheap ones knowing I'll switch out every 12-16 months. Depending.
My 1500 HPS bulbs are like 75$ or close because they are uncommon and is a limited amount of users out there. But man they are bright as fuck.. I went out back one night,, fired up the 1500 watt MH. Lite the whole neighborhood up.. I've never used that bulb at all..
Sorry to babble...