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Answer by the answer?
yes

Answer by oc mom
definitely!!

Answer by rhsaunders
Very little. What this does is to reduce the fan speed, and with the motor turning more slowly, it will draw less power. But the huge power hog is the compressor motor, which will be running any time that the thermostat is asking for more cooling. Which means that the warmer you can stand, the less power it will draw.

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Give your own answer to this question below!

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Answer by adelaidasheckler
keep the lights off as much as you can.

and dont put night lights on.

dont keep the lights on when no ones in the room or whatever.
its just a waste.

Answer by Mr Z rM
-Off the aircon instead of fan
-Off the light when not in room
-Switch off tv when no one watch
-bath with cold water instead of hot warm water.

Answer by An0ny0m0us
Turn off the Computer now

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Give your own answer to this question below!

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Answer by Weatherman
Get a cheap, even 2nd hand, old mobile phone and convert the charger

Answer by aragon_m25
i failed that class cant help u there sorry!

Answer by AntoineBachmann
solar water heater. In its most basic form, all you need is a container (say a massive plastic milk bottle) that needs to be painted black. You can put this in the sun, and besides it another, unpainted bottle, both full of water. And measure the water temperature after a couple hours. Very easy, and goes to show (harnessing just 1/12’000th of the solar energy that reaches the Earth would cover all of mankind’s energy needs).

Needless to say, a container that will be broad and flat and well insulated, will work superior than one that is be thin and poorly insulated. Experiments could be made with plastic (better insulator) or metal (poor insulator).

a superior model can be built by putting a plastic pipe (say, garden hose) in the shape of alternate “S”‘s in between to plastic sheets, the upper one dark / painted black, and this will heat water faster, the water being in a bottle connected to the hose. But the problem is that you need to get the water circulating… By the way a professionally built version of this can be used to cover about two thirds of a family’s hot water needs with a mere 15 sq.ft of panels per person (makes you wonder why not everyone does it).

More sophisticated uses would be to build a concave mirror to heat water / cook food but this is a much more complex project, beyond the scope of a swift high school thing.

Another idea would be to purchase a cheap / small photovoltaic cell, and connect that to a motor, or a lamp, or something. But I cannot tell you where to find those in your area.

Hope this helps

a

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Know better? Leave your own answer in the comments!

Which is Important, the RPM or Watt of the generator?

I presume with a 12v DC generator, I do not need a charge controller for the batteries?

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Answer by Abdullah Eyles
The speed of a 12V generator doesn’t really matter. The output, measured in Watts is more important.

Of course you WILL need a charge controller, otherwise you might end up cooking (overcharging) your batteries on windy days.

Also the output of the generator will need to be around 13 volts to give the batteries a decent charge – they will always be under voltage if you charge them with 12 volts.

Have a look at the magazine linked below, you will find lots of useful information there…

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Add your own answer in the comments!

• Save 78% more Energy than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
• Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
• No UV, IR or Heat Radiations, unlike Incandescent Bulbs
• No Mercury, Lead-Free and RoHS compliant, unlike Fluorescent Bulbs
• No Flicker, No Buzz Noise, or No Warm-up Delay, unlike Fluorescent Bulbs

ecoBrites Ultr-Brites 12x2w Hi-Performance LED light (replacing 200w incandescent/halogen bulb). Warm-White Light Output in 30-Degree Angle “Spot” Beam Spread with focus lens. Standard PAR38 / R38. Designed for Recessed Downlight, Spotlight, Track Light & Floodlight (replacement or retrofit for Incandescent, Halogen, Fluorescent & CFL Bulb). Best for High Ceiling, Lobby, Entrance. Free Shipping and Handling within the continental USA. * Caution: this is not a dimmable model – Please use ecoBri

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• Color: Warm White (4300K)
• View Angle: 15 Deg
• Light output: 80 Lumens
• Product Diameter:1.375″ or 35 mm
• Product Length: 1.375″ or 35 mm

This is our brightest MR 11 bulb. It has 6 high-powered led bulbs, which produce about a 3 watt Luxeon bulb. The light pattern is perfect for illuminating displays or even just adding accent lighting yet it is still bright enough to be used anywhere.
LED bulbs are compatible with all types of magnetic transformers but not all electronic transformers. Many electronic transformers require a minimum load which is greater than that provided by LED bulbs. LED bulbs will usually not work properly (no

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0 of 2 people found the following review helpful: not the brightest not the best, September 7, 2010 By  Brent S. Ferguson “Brain Trust” (cleveland, ga United States) – See all my reviews    This review is from: Brightest MR 11 12V 6 High Powered LED Warm White, 1104WW You can get superior for less, these were hard to fit into the Malibu landscape lighting. They do use about 1/60th the power of the original 50 watt bulbs but are dim. I opted to go with 3 watt luxeon LED’s – and on a 100 watt transformer am lighting up the night sky!!! Help other customers find the most helpful reviews  Was this review helpful to you?  >Report abuse | Permalink  Comment (1) 0 of 3 people found the following review helpful: Ooops!, September 25, 2010 By  Yeti – See all my reviews Amazon Verified Purchase(What’s this?) This review is from: Brightest MR 11 12V 6 High Powered LED Warm White, 1104WW unfortunately the vendor had shipped the incorrect item, was out of stock on the correct item, but credited my account and all was good. Help other customers find the most helpful reviews  Was this review helpful to you?  >Report abuse | Permalink  Comment

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• Save 78% more Energy than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
• Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
• No UV, IR or Heat Radiations, unlike Incandescent Bulbs
• No Mercury, Lead-Free and RoHS compliant, unlike Fluorescent Bulbs
• No Flicker, No Buzz Noise, or No Warm-up Delay, unlike Fluorescent Bulbs

ecoBrites Ultr-Brites 12x2w Hi-Performance LED light (replacing 200w incandescent/halogen bulb). Natural-White Light Output in 30-Degree Angle “Spot” Beam Spread with focus lens. Standard PAR38 / R38. Designed for Recessed Downlight, Spotlight, Track Light & Floodlight (replacement or retrofit for Incandescent, Halogen, Fluorescent & CFL Bulb). Best for High Ceiling, Lobby, Entrance. Free Shipping and Handling within the continental USA. * Caution: this is not a dimmable model – Please use eco

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• Deliver 78% more Energy Savings than Incandescent Bulbs, or 47% more than Fluorescent Bulbs
• Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
• No UV, IR or Heat Radiations, unlike Incandescent Bulbs
• No Mercury, Lead-Free and RoHS compliant, unlike Fluorescent Bulbs
• No Flicker, No Buzz Noise, or No Warm-up Delay, unlike Fluorescent Bulbs

ecoBrites Hi-Brites 12x1w Hi-Performance LED light (replacing 100w incandescent/halogen bulb). Warm-White Light Output in Wide Angle “Flood” Beam Spread with 100-degree Diffuser. Standard PAR38 / R38. Designed for Recessed Downlight, Spotlight, Track Light & Floodlight (replacement or retrofit for Incandescent, Halogen, Fluorescent & CFL Bulb). Best for High Ceiling, Lobby, Entrance.
Free Shipping and Handling within the continental USA. * Caution: this is not a dimmable model – Please use eco

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• Deliver 78% more Energy Savings over Incandescent Bulbs, or 47% over Fluorescent Bulbs
• Rated Life 50X Longer than Incandescent Bulbs, 6X Longer than Fluorescent Bulbs
• No UV, IR or Heat Radiations, unlike Incandescent Bulbs
• No Mercury and RoHS compliant, unlike Fluorescent Bulbs
• No Flicker, No Buzz Noise, or No Warm-up Time, unlike Fluorescent Bulbs

ecoBrites Dimmable 12x2w Hi-Performance LED lights (replacing 180w incandescent/halogen bulbs). Warm-White Light Output in 30-Degree Angle “Spot” Beam Spread with focus lenses. Standard PAR38 / R38. Working with Traditional Dimmer. Designed for Recessed Downlights, Spotlights, Track Lights & Floodlights (replacement or retrofit of Incandescent, Halogen, Fluorescent & CFL Bulbs). Best for High Ceilings, Lobbies, Entrances.
Free Shipping and Handling within the continental USA. Standard 110v/E27

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• Newest Technology – Save Energy – Virtually no energy wasted on heat
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• 50,000 Rated hours
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Lighthouse Hydro LED grow lights are designed and manufactured to exact quality standards. Only the highest quality components are used, from individual LED diodes and circuit boards, to power supplies, fans and metal housings. Lighthouse Grow Light are all fitted with LEDs rated for 50,000 hours, equal to 5 to 10 years of active use in your grow room. During the lifetime of your light, no visible reduction in light output will be seen. LED lights run virtually silent; no humming or buzzing like

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This non dimmable 3watt LED Bulb is a direct replacement for a 35W MR 16 halogen bulb. Select the appropriate beam angle. Amazingly it produces 180 lumens. LED bulbs last much longer then halogen bulbs and burn much much cooler. This MR16 has a stylish metal enclosure.

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