Its 10 bucks why not. It helped turns out I under estimated box fans but everything else was close already by just say divide 55w fan by 3 since has 3 settings and just assume each one is that many watts. Worked for the lights but box fans arent 18w per setting.
Box fan starts at 40w 2nd setting is 46w 3rd is 52w. Well I guess I will dim lights accordingly which if the perpetual flow is staggard I can have one blasting in mid flower late flower and the others dimmed at early flower. Whatever works. This little thing is cool but yea it doesnt measure surge watts just peak usage theres a difference.
I just for one dont want my dumbass to hurt myself with those advanced meters and two I dont think I know what all to get yet. I need to look back in thread but kinda conflicting atm I read the model suggested wont measure surge while one here said it does. Its 100$ mistake to make so want to be sure but this little thing is cool.