So, we can collect sunlight for about 12 hours a day during the summer.
12 volt led lights off grid install#
It is not necessary to install it in a light fixture. The circuit board with the components function just fine as is. This would provide the means to adjust down the power even lower if all you need is the equivalent of one candle of light. A variable resistor can be added to the circuit such as the type with a knob to be used as a control. It should be noted that the power used in the circuit is determined by a component called a resistor. A quarter of one watt? For the same amount of power used to light up an old school 75 watt incandescent light bulb you can power 300 of these desk lamps or 1200 individual piranha LEDS. The lamp runs on less than ¼ watt of power and can be connected directly to a car battery. I choose the “Piranha” type LEDS for this design because they are very efficient. It works quite well for reading and many other things.
The 4 LED desk lamp in the article puts out over 4 times this amount of light and it is concentrates it in a small area. In comparison to nothing it is a huge and useful amount of light. You can’t do much for 12 hours a day under these conditions. Lets draw pictures on a little chalk board. Now that you are in total darkness what would you like to do? Read? How about the common off grid activity called playing card games. Cover up or unplug any electronic devices that emits any light whatsoever.
12 volt led lights off grid windows#
Cover up the windows with heavy blankets if any light comes in from outside. On a Friday night, if you don’t have to go to work the next day, at about midnight. Well first lets come up with a baseline called zero or nothing. You may be asking “What can you do with 20 watts?” It does not seem like much. It includes information for actual 5 and 20 watt systems still in use today. If you have any interest in making your own micro solar set up you will want to read this. The use of a throw away battery can reduce the cost of a micro solar set up by as much as 50 percent while not sacrificing performance. Here are two 24/7 (day and night solution) micro solar set ups that utilize a discarded used “dead” car battery to store solar generated electricity for use 24 hours a day. A manufacturer of the original solar lights can be contracted to make the unfinished assembly with the housing, solar cell and connecting wires for in large quantities for a huge reduction in cost. This electric skylight project used two solar cells but can be made with one.
In my opinion it is better than the two liter bottle installed in a hole in the roof solution. It is like a small skylight but electric rather than physical and can be moved where needed (the cost can be less than a dollar). In other words you are electrically bringing in a minimal amount of sunlight indoors during the day. (Update : The link to the study no longer works so it has been deleted). It is worth the couple of minutes to read. It includes among other things the financial burden and health related issues. "Rather than keep you in suspense or have you read pages of philosophical ramblings before getting to the solutions (I will ramble soon enough), I will first post a link to a short two page summary of a study that clearly explains the magnitude of the problem of lighting in off grid regions. This simple application of modern technology can have far reaching benefits: Here is one for modifying an inexpensive LED lantern flashlight to run for over 300 hours on the same battery:īelow is the text from an article I wrote recently. The largest one is a 20 watt system and can run a 10" camping fan 24/7. I used "dead" car batteries instead of new batteries to cut the cost of the system in half. This first one shows how I put together a couple of my micro solar setups. Below are some links to related Instructables I have done: These were quick and easy to make with no circuit board required. The clip with the square LED assembly (the 5th one pictured above) was an automotive light and will be used as an area light as well. These were quite acceptable for reading, The one with 1 watt LEDS will make a nice area light in a blackout. Also the lower power circuits are intended to be bright enough to read by if held about 1 to 2 feet above a book. The smaller component LEDS are at peak efficiency at about 8 milliamps.
You may be wondering why I decided to run the piranha and straw hat LEDS so far below the rated 20 milliamps. Discharging a lead acid battery too low will shorten it's useful life. I used 4 LEDS with 12 volts so that light will dim and shut off before the lead acid battery drains too low. The Some circuits also have an on/off switch.
0 kommentar(er)
