M
Martin Brown
Guest
Paul Keinanen wrote:
And pure solid state LED based units are still more expensive.
low voltage DC wiring system. It takes a lot more of a percentage when
you drop half a volt off 12v than the same drop on 120 or 240v.
And to deliver the same power into the load takes 10x or 20x the current
on a 12v service. Useful if you are off grid but not so good in winter
at my latitude. Not enough winter sun to keep things topped up.
Wind power is a bit better in that respect if you have the space.
Regards,
Martin Brown
Although they are cheaply mass produced as emergency standby lights.On Thu, 29 Oct 2009 08:12:41 -0400, "vaughn"
vaughnsimonHATESSPAM@gmail.FAKE.com> wrote:
nospam@nevis.com> wrote in message news:4ae8ff39$1@news.x-privat.org...
For a laptop, printer and a couple of 15 watt compact florescent lights?
Hardly a huge expense, with 1000watt inverters $100.00 on ebay, a couple
of Sams' club deep cycle batteries ?
Actually for system you don't really need inverters at all. I use
12-volt compact florescent lamps,
Which definitely contains an inverter, thus, adding cost.
And pure solid state LED based units are still more expensive.
Although you really need to pay attention to the current flowing in aI use the lamps out in my yard, and my in-home 12-volt wiring
system is slowly growing.
This is a good strategy if the 12 V system total cost is less than the
cost of more common 120 V (US) or 230 V (Europe) systems added with
the inverter cost.
low voltage DC wiring system. It takes a lot more of a percentage when
you drop half a volt off 12v than the same drop on 120 or 240v.
And to deliver the same power into the load takes 10x or 20x the current
on a 12v service. Useful if you are off grid but not so good in winter
at my latitude. Not enough winter sun to keep things topped up.
Wind power is a bit better in that respect if you have the space.
Regards,
Martin Brown