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Robbo

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Robbo last won the day on August 10 2016

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  1. Err, you didn't, you misquoted the page and only highlighted one summary bit even thou the rest of page quote clearly states it's on about long wave radiation, but you only choose that particular bit. Please show us the other inaccuracy's if it is riddled with the stuff, and inform the authors of the site so the can put it right. If this is a source for kids we want it to be right.
  2. It goes into long wave and short wave radiation and what passes through glass. If a12 year old can understand the last summary lines then why can't you?
  3. Although it doesn't say " radiant heat cannot travel through glass" tho does it!
  4. Those in the link are 220-240v mains (it says that in the spec area)
  5. Bluesea and Hella (as well as others) have LED Dimmers that have a range of input voltages. The hella model looks to limit the output voltage as well so looks better... http://www.hellamarine.com/en/products/accessories/dimmers/2-group-light-dimmer.html Edit; looks like Hella is for standard bulbs not LED. :-/ The Bluesea is a PWM type and has "bulb saver for when charging" when looking at the instructions bumf.. https://www.bluesea.com/products/7507/Deckhand_Dimmer_-_12V_DC_12A
  6. I find 250g would last me 3-6 months if it didn't go off! Wish they did 100g versions!
  7. If you dont want gas but want a instant hot water heater then kabola and hurricane make Combi boilers. Expect to pay around £2-4K.
  8. Heat will make the panel less efficient. I doubt it will damage the panel tho. "Flexing" the panel damages them tho, they are designed to only flex in one direction for installing not got hold of to make thunder sounds. Even tho it affects the output performance, on the days that it is hot to degrade the performance there is more than enough daylight hours to make it not worth worrying about.
  9. It's good to be technically correct. My explanation is easily understandable for the ordinary Joe. One of the reasons to be correct is to come away from the batteries are the backbone of your electrical installation, they are not, they are just a part of it even if the terminal on top of the battery has all your connections for loads and charging equipment.
  10. It's not multiplying it, it's transforming it. In this case from one voltage to another. A PWM doesn't transform that's why the panels need to be the same voltage as the batteries.
  11. You can get the holders from CRT.
  12. That is still incorrect, as you with a battery you can't empty and fill it at the same time. The battery can only either charge or discharge, it can't do both at the same time! Think of a pipe with everything coming off it. Solar, loads and battery. This pipe is the backbone. Now your loads take water from the pipe your solar adds water to the pipe. Batteries can do either but not at the same time. So if solar is adding more water into the pipe than the loads can take the battery can take the excess. And vice versa if solar is not adding enough water the loads want the batteries can add water to the pipe.
  13. That is correct batteries can't give and take at the same time, they can only do one or the other. Your panels don't just connect to the batteries they also connect to the loads as they are all on the same "backbone"
  14. Only if the solar output is exactly the same or less than what the TV is using, which would be rare if you have a decent solar bank and in summer.
  15. If no other loads it goes to the battery. Think of the battery when charged as a variable load, it basically takes what's left if it can. also the other way, if the solar is giving 10a, but the loads are taking 15a, 5amp of that is coming from the battery.