Light-emitting diodes (LEDs) were first commercially accessible in 1962 as basic electronic components put to use as indicators. Within the recent years, enhancements in LED technology triggered apps beyond its primary goal being an indicator lamp. Present day versions can handle emitting visible light with many different degrees of brightness while keeping power utilization as a result of a nominal amount. Inventive applications emerged easily so that LED lighting has become the preferred standard for indoor lighting.
LED grow lights can be used for in house growing plants. This application was adjusted from NASA, which very first explored using LED lamps to develop plants in outer space. Superior engineering of LEDs enablespermits fine wavelength adjustments of light emitted by the system. The most appropriate wavelength is engineered to be able to give you the important light within the spectral range ideal for chlorophyll absorption.
In comparison to traditional lighting, use significantly less power while generating the same power of light. Additionally, other components like ballasts and installation platforms shall no longer be necessary. Reduced quantity of heat can also be dissipated caused by the more efficient usage of electrical energy. With lesser heat produced, watering cycles for plants are also decreased since lesser transpiration takes place. Slow water evaporation needs lesser watering cycles for increased savings on operational costs.
White LED is among the popular types of LED grow lights. It has an general luminous effectiveness of up to 150 lumens per watt (lm/W), which means 22% overall luminous efficiency. LED screw base light at 4.1 W is capable of a maximum overall luminous efficacy of 82.9 lm/W, which corresponds for an overall luminous efficiency of 12.1%.
LED grow lights have the benefits not seen in common lighting. Lesser number of elements indicates simpler installation; lower heat dissipation results to reduced watering cycles; and emission of light at particular ranges reduces power consumption.
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December 12 2011 | Landscaping | No Comments »
As the use of LED lights and solar cells continues to grow, so also does the opportunity for solar decorations in the yard. From solar-powered water fountains to solar-powered gnomes, there are creations for every age, taste, and time of day.
A trademark of many gardens and patios is the solar lantern staked into the ground. While one of the first solar lighting products on the market, lanterns still remain popular and are available in an incredible variety of styles and materials. Many sets now come with a single and movable solar panel, which allow for lanterns placed in shadowy areas to still burn brightly at night.
Outdoor string lights have long been a favorite for holidays and parties. Solar-powered string lights allow for constant use without a switch or a plug. Some strings are designed to accommodate pre-made or original Chinese lanterns; others take the form of a rope light.
For landscape lighting of plants, trees and garden decor, directional solar lights can provide a convenient solution. Freedom from an outlet allows placement of a landscape light anywhere the sun can reach, with potential for lighting on all corners of a property.
Solar fountains bring the welcome sound of running water into the yard, minus the worries about wasting electricity. Placing a fountain near a bedroom window creates a peaceful background for sleep, and there is no need to turn the power off. Many times these garden decorations also double as bird baths.
Many are re-discovering garden decorations brought to life by the use of solar power. For example, kissing fairies once hidden after sunset now have their snowy faces illumined by the light of a glowing orb. Likewise, a trio of gnomes hold lit lanterns high to see the trail ahead. The whole yard can indeed be a wonder at night.
For the backyard connoisseur who must have it all, a solar patio umbrella provides both an attractive and practical solution. During the day solar cells gather energy as the umbrella provides shade; during the night LED lights on the underside of the umbrella provide light for meals and socializing. The system can be turned off at any time and the solar cells will continue to gather energy.
As a final step, check for the best solar landscape lights on a consumer site to help find the leading brands on the market. Adding motion, sound and lighting to the yard without the guilt of wasting energy provides a special satisfaction. In addition to bringing enjoyment, it can also be surprisingly easy and economical.
Robert Mann has been writing consumer articles for over a decade. In partnership with his wife, he has developed websites for finding printable coupons and best products in major consumer categories.. Free reprint available from: 6 Ways to Solar-up Your Garden.
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November 24 2011 | Landscaping | No Comments »