A small coffee pod machine tends to range between 1300-1400W. Power conversion losses from converting 12v DC battery power to 230v AC mains power in an inverter uses about 10% more power than the actual appliance draws, so expect around a 1540w draw from the battery (1400w x 1.1 = 1540w). Assuming a cup of coffee takes about a minute to make: If your speaker is rated at 200 watts that means it can handle 200 watts of power. Depending upon how the manufacturer arrived at this rating it may be able to handle a lot more than this. A 200 watt speaker with 200 watts being delivered to it may be the same volume as a 1000 watt speaker with 200 watts delivered to it. Then again, it may not. The 1000W would then draw 300/0.7 = 428W and the 500W supply would draw 300/0.85= 352W 428/352 is 1.21 i.e. 21% more power is used. = 73W. Given a more normal estimate of 80% and 85%. 300/0.8 = 375, 375/352 = 6% more power = 23W. The size of PSU is only relevant in that the efficiency at a given wattage will be different, yes 20% of 1000 is 6,550 W. As you can see in our example above, if we add up all running watts of our appliances we get the number 2,950 – so we are well within the 4,000 running watts limit (850 + 700 + 50 + 150 + 1,200 = 2,950). However, we would need a generator that is capable of producing at least 6,550 surge (starting) watts to power all these appliances The Bose Smart Soundbar 600 is decent for music. Its frequency response is quite balanced and even, with clear and accurate reproduction of voices and lead instruments in your favorite tunes. Thanks to its bass and treble levels, you can adjust its output, too. That said, there's not a lot of rumble in the low-bass, given that it's a standalone Power supplies are rated by the maximum amount of power they can deliver. That means a power supply rated for 520 watts can supply more electrical power than one rated for 300 watts. That’s more electrical power. It won’t make your computer run faster or give you more “computational” power — this is only about the electricity required Here’s an example. Most solar panels today are 400 watts in size. If you installed a 400-watt panel in an area that gets 121 peak sun hours per month, that solar panel will generate about 48 kWh of electricity: 400 watts X 121 peak sun hours = 48,400 watt-hours generated monthly . 48,400 watt-hours / 1,000 = 48.4 kilowatt-hours The 800 Watt PSU would run at 62.5% of max rating. That is a good value. The 1200 Watt PSU would run at only 41% of its maximum rating. That is still within the normally accepted range, but at the low end. If your system is not going to change than the 800 Watt PSU is the better choice. A 500 watt solar generator can run a mini fridge for 10 hours, but the same generator can’t run an LEDs light for 100 hours. It’s important to find the right generator. The 670x0.15x12x7x10 equates to 84,420 pence, which means that your light will cost you a total of £84.42 over the course of a ten week cycle. 600 watts HPS are more efficient per watt in the amount of light they put out, in other words, even though 1000 watt is almost twice as much power you do not get the equivalent increase in usable light by the plants. Don’t get me wrong, 1000 watts will produce more light than a 600 watt, it just isn’t as efficient. BXEhD.