I used one this grow and I’ll probably never use one again lol.
I like bamboo sticks so I can mvoe my plants, once the nets in there and they grow into it… Can’t move em which makes it brutal to defoilate or get into your tent if you needed to mvoe the back fans or whatever.
240 volts is what is feeding into your house and to large appliances like water heaters, dryers, kitchen ranges, heat pumps. It is cut in half to 120 volts (in America) and that is what comes from the receptacles throughout your home, in general. In Europe and the UK everything is 220 or 240. Unless you have a very large grow operation or are in a commercial setting you probably want 120. Volts times amps equals watts. Watts divided by voltage equals amps necessary. A 480 watt appliance or light plugged into 120 volt wall receptacle will draw about 4 amps.
Yes I give recharge after watering with Jacks. I save enough of the Jacks water to have about 8oz left per plant, mix in some recharge and give to the plants. I’m usually putting in 1/4 tsp recharge to 1/4 gallon of Jacks water for my 4 Cherry clones in flowering. I do it weekly, Sunday is recharge day for all my plants in veg and flower.