A simple (and I do mean simple) formula is approximately 100 watts per amp. So, 700 watts total equals 7 amps, with 8 amps to spare on the 15 amp circuit breaker.
It's really a bit more complicated than that, considering rms voltage/current equation, but it's close enough for government use. ;)
The fuse rating should be 5 amps
You can, but the Sub will not put out its full sound power.
Yes.
Ford OEM block heaters are all 600watt (5.3 amp x 115 volt). aftermarket heaters are available up to 1000watt. (1 kilowatt).
There is no free power. Inverters always waste some power; they are not 100% efficient. You can't take as much power out of a battery as you put in to it.
Watts = Amps x Volts, so 600 W / 240 V = 2.5 A 600 W / 120 V = 5 A 600 W rated balast is more like 660 W in realty, so to be safe, plan for 3A pulled per ballast. P.S. New digital balasts are much closer to 600 W, something in 610 - 620 W range.
The resistance of the bulbs doesn't depend on the voltage source. They can be wrapped in tissue in cardboard boxes in the drawer. If one bulb is designed to dissipate 200 watts and another is designed to dissipate 600 watts when they're both energized by the same voltage, whatever that is, then the 200-watt bulb has three times the resistance of the 600-watter.
My build is: Q6600 Biostar tForce Motherboard 8800GTS 512MB 300GB HD 2GB 1066 Ram (I only have 1 in atm) 600Watt OCZ GameXStream PSU The problem is that my system turns on (not every time it seems as if I have to wait an hour in between tries) and boots into the BIOS then it asks me to insert a something to load an OS. Usually when it gets to this point it just shuts down no beeps or anything.
100 watts minimum per plant prox. 2000 lummens is great but can take more, up to 100.000 lummens too kill the plant. if you have LED grow light then you will need less Watts like 90watts LED is like 400-600watt MH/HPS vise versa. Buy nasa testet LED grow light or wich thay use. Hmm i think that all. Regards