about 6 days ago - No comments
Question by Jordan L: Why can’t energy saving light bulbs dim, when used on a dimmer switch? We have recently installed some new light fixtures and did not realize that energy saving light bulbs will not dim, they will only work on maximum power, when the dimmer switch is turned down, they just flicker. Also
about 1 week ago - 1 comment
Question by GorgeousLilThing: I want to conserve energy, Is there anyone out there who knows how to make solar panel the simple way? What are the key materials needed to create a solar panel and the simple steps to assemble it. What would be the desirable size of the panel enough to run a desk
about 1 week ago - 1 comment
Question by : why not people use solar energy for their daily need? I am observing that normally we need electricity for lighting purpose then why not people use solar energy for lighting in each room. —————————————— Answer by DifdiMost people are not millionaires. Solar energy systems equal to what you can get via normal
about 1 week ago - No comments
Question by Michelle: I want to save money on my electricity bill by switching the settings? I work at home, and have bought a small air conditioning unit for my office. I have it on at least 12 hours a day, and I was wondering what setting would make it cheaper. It has low cool,
about 2 weeks ago - No comments
Question by Dan The Man: how do you build a small wind turbine? its for a school project called science research project. Please, I really need a good explination on how to build a SIMPLE wind turbine. —————————————— Answer by PremHey Dude, It is simple. Get a small DC motor. Get a Diode. Connect the
about 4 weeks ago - 5 comments
Question by Kellie A: My husband wants to build a wind turbine and buy a couple of solar panels.? We looked at the cost of buying a whole home alternative energy system to try to cut down on our home electric bill…it has been cold this winter! Anyhow, the cost of a whole home system
about 1 month ago - 14 comments
Question by jrenee: Do energy saving light bulbs really save you money? Has anyone see a drop in their electric bills after using energy saving bulbs? —————————————— Answer by tmcbluewell i instlaled them in each single socket when i moved into this home so i did not see a drop because it was before i
about 1 month ago - 5 comments
Question by Alicia G: Do those swirly light bulbs that save energy work? I’ve used them but they do not last 7 years like it says on the box. —————————————— Answer by Kimberlythey do work to conserve Answer by bestonnet_00They’d only get 7 years with occasional use though you should be able to get at
about 1 month ago - 4 comments
Question by MJ: Whats the safe way of discarding broken energy-saving light bulbs? I broke one and want to know, what the best method to dispose of it? Also I know they contain mercury vapour, and I was wondering whats the chance of suffering mercury poisoning? —————————————— Answer by The Man In The BoxPut on
about 1 month ago - No comments
Question by caroleb@yahoo.com: How to build a solar panel for lighting/heat source? I want to build a solar panel —————————————— Answer by MaynardHere are some links http://www.thesolarplan.com/articles/your-own-solar-panel-collector.html (small like kids project) http://www.treehugger.com/files/2008/09/how-to-make-diy-cheap-inexpensive-solar-panels-ebay.php (large homemade project) http://www.mobilehomerepair.com/article17solar.htm (on the side of a home homemade project) http://www.builditsolar.com/Projects/PV/pv.htm (professional project kit) Answer by Ned“Some people that have advanced
about 1 year ago
you can already buy such a light
about 1 year ago
first you will need a transformer / power supply to bring the voltage down to something usable for leds, then you’ll need to decide how many leds you want. then you’ll have to go out and buy those leds. they should come with specs that will tell you what voltage they prefer and how many watts they consume. there is a lot of variety out there, so we can’t really answer your question simply. once you have an LED circuit design, and know the specs of the LEDs then the rest can be calculated.
about 1 year ago
you will need to know the total wattage of the leds. you will need to build a rectifier to change the ac wall current to dc. you will also need to step the voltage down from 120v to say 12v. once the wattage is known you can calculate the resistance needed using watt’s law. power in watts divided by current in amps squared equals resistance. all of this information is easily found on the net and youtube.