In the tomato variety that showed the strongest reaction, the tomatoes 
receiving extra light from the LEDs contained up to twice as much vitamin C as 
the tomatoes not exposed to the LEDs. The doubling of the vitamin C level was 
achieved with an extra dose of light similar to 25% of the natural light 
intensity on a sunny day.Research started this year in cooperation with 
companies from across the horticulture chain is studying how the nutritional 
value and flavor of tomatoes and other vegetables and fruit can benefit from the 
use of Wholesale Led high bay light  A study into the preferences of consumers is used to determine 
the focus of the research.Wageningen UR Greenhouse Horticulture performed its 
research within the framework of the project Gezond uit de Kas,financed by the 
Dutch Ministry of Economic Affairs. In its research, Wageningen UR Greenhouse 
Horticulture collaborated with Philips, which is active in the field of LED lamp 
innovations in horticulture.
Xcel Energy will monitor performance of the new lights for two years and use 
the data to develop an LED program for every state in its service area: 
Colorado, Michigan, Minnesota, New Mexico, North Dakota, South Dakota, Texas and 
Wisconsin. The utility maintains approximately 500,000 Xcel Energy and 
customer-owned street lights in all eight states.Xcel Energy has changed 530 
high-pressure sodium (100-, 150- and 250-watt) fixtures in West St. Paul toGE's 
LED street lights. Data collected during the testing will help the utility 
decide what sort of LED lighting products provide the most benefit to customers, 
how to price LED rate options, how much maintenance is required and how 
frequently it should be performed. It also will document customers' perception 
of the LED fixtures.In the meantime, West St. Paul will continue to pay its 
current street light service rate. Xcel Energy funded the $200,000 cost to 
install the fixtures, completed in January 2013.
"These new LED systems have improved the quality of light that our residents 
rely on to navigate our streets at night," said West St. Paul Mayor John 
Zanmiller. "With the help of Xcel Energy and GE Lighting, our community is 
seeing the promise of a new technology that can yield significant savings. The 
preliminary data is promising, and other cities-large or small-should keep a 
keen eye on the results.Singapore, a beautiful garden city, is famous for its 
cleanness. Spark LED high bay light, based on LED technology, is energy saving, 
environmental friendly and durable. The installation of Spark Agent of floodlight in this beautiful city makes perfect combination between the two.Singapore 
client announced that Spark LED high bay lights successfully passed their test 
in terms of reliability, photometric performance, brightness maintenance, 
quality and lighting effect. The client said after the test, “Spark LED high bay 
light is one of the most reliable one I’ve ever seen; and I quite like the 
design and the material used, the whole lamp looks very high-grade.
you can read more:http://winonds8.blogspot.com/2013/11/it-is-blue-part-which-causes-problem.html
 
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