Posts Tagged ‘light’

I made this small 12 volt 4 LED (approx. 1w) solar emergency /general purpose light for the bedroom. I used a CD case as the housing for the light. It is powered by a 1.8w solar panel and a 7.5 amp hour battery. The solar charge controller has a timer function to control the LED and is programmable. I can make adjustments to the light output by adding more LEDs or a bigger solar panel if necessary. Google LED calculator for wiring and resistors needed.

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A paper solar cell circuit is shown powering an LCD clock when illuminated. The entire integrated paper photovoltaic is then fed through a roll-to-roll office laser-jet printer. The resulting ink spells MIT on the device side of the paper array, which then continues to power the LCD clock. The clock circuitry is shown at the end of the video, which is powered by the photovoltaic alone and regulates a constant voltage to the display for variations in light intensity. The paper photovoltaic array is illuminated from below with simulated solar illumination.

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Country: United States
Region of Impact:
http://www.self.org/

The Solar Electric Light Fund powers drip irrigation with solar technology so farmers can cultivate income-generating crops year-round.

In the Sahel region of Africa, people depend on local agriculture for income and nutrition. But the region experiences erratic rain and long dry periods and there is no electricity for irrigation. These conditions deepen poverty and malnutrition.

The Solar Electric Light Fund pairs solar power and drip irrigation so people can grow nutritious crops in every season. Solar-powered pumps move water to reservoirs at each agricultural site, and gravity distributes the water to crops. A project in two villages has helped provide one ton of much-needed produce to the region each week and increased household incomes by as much as 50% or more.

About The Tech Museum
The Tech Museum is a hands-on technology and science museum for people of all ages and backgrounds. The museum-located in the Capital of Silicon Valley -is a non-profit learning resource established to engage people in exploring and experiencing technologies affecting their lives. Through programs such as The Tech Challenge presented by Cisco, our annual team design competition for youth, and internationally renowned programs such as The Tech Awards presented by Applied Materials, Inc., The Tech Museum celebrates the present and encourages the development of innovative ideas for a more promising future.

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http://www.ussunlight.com

Power your fan after dark:
The addition of the Solar Controller with Dual Mode Technology will enable your Solar Powered Attic Fan to run after sunset or when there is no light available from the sun.

When there is no sunlight available to power the fan and the Solar Controller has the optional house power connection enabled, the Solar Controller will cycle house electricity for 8 minutes every half-hour in order to power the fan. This will allow your attic temperature to continue to drop after sunset and help remove the hot, stagnant air that can build up on those warm summer evenings.

Real-time status updates:
The remote control readout on the Solar Controller sends a radio signal through your walls and ceiling to give you a real-time status update on fan operation to let you know if your fan is running and if the power source is from the solar panel or the house electricity.

No more questioning if your fan is running! This patent pending, industry-first advancement will give you the peace-of-mind that your fan is functioning and your attic is being ventilated.

An intelligent device:
The Solar Controller monitors both temperature and humidity optimizing your fans operation for maximum performance in all weather conditions.

The Solar Controller intelligently limits the amount of electricity used to power the fan, so it is a perfect alternative to traditional electric powered vents. With the built-in temperature and humidity sensors, the Solar Controller can monitor attic conditions and utilize solar power or house electricity to optimize the run-time of the fan by removing excessive heat and moisture.

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Pinoy’s are Truely Smart/Intelligent :) )

SUBSCRiBE / COMMENT / RATE :) )

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My kitchen led lighting with 10 watt leds and home made heat sinks, one watt flat round leds, switches, malibu lights led

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My solar setup part two of two.

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Read More: http://goo.gl/mRAXQ
Solar Powered Christmas Snowflakes Yard Light by Winston Brands

3 Solar Snowflakes: Celebrate the holidays with a blizzard of color and beauty in your yard. Set of 3 fully dimensional clear snowflakes are connected to a solar panel that stores the sun”s power during the day. At twilight they automatically start glowing with an ever changing display of red, blue, yellow and green light. Stakes into the ground. Requires 1 AA rechargeable battery (included)…
Read More: http://goo.gl/mRAXQ
Customer Discussions and Customer Reviews.
Solar Powered Christmas Snowflakes Yard Light by Winston Brands

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Solar Electric Light Fund brings solar power to Ahoto village in northern Nigeria.

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Using the power of the sun, this fantastic kinetic motion sculpture features a bicycle rider whose legs peddle up and down, as though the rider was going for a casual ride down the boardwalk at the beach. A unique and decorative item, this whimsical sculpture lamp features soft, indirect lighting, and is powered by directing a swiveling solar panel towards a source of sunlight. Or, if not sunlight is available, you can still use the plug provided to power the lamp. A stupendous lamp for any desktop, this will make a great Father’s Day or Christmas gift. You can get one for your child’s favorite teacher, or for a nice addition to any corner table in your home. Act fast and get one today before it rides off, off and away!

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