DOE released the latest test results of high powered led bulbs

DOE released the latest test results of high powered led bulbs

PNNL on each lights a test of three samples, using the integrating sphere LM-79photometric tests, these bulbs purchased in the summer of 2011, tests conducted in the fall. The report said these bulbs luminous efficiency 36 lm / W to 72 lumens / W ranging from an average of 53 lumens / watt. Minimum and maximum luminous efficiency hasincreased, the scope of the luminous efficiency is still wide, high powered led bulbs, the expected range of futurechanges in the luminous efficiency is increasing. This is because manufacturers are looking for different product types and application requirements.
The test consists of 11 A19 samples, the luminous efficiency of these samples are closeto 60 lumens / watt, high powered led bulbs, the power consumption of less than 10 watts bulb light efficiency of50 to 55 lm / W luminous efficiency greater than 10 watts for 55 to 70 lumens / watt.Compared to the previous round of testing, the maximum gap of 20 lumens / watt improvement more. In this test, the Department of Energy for the first time to assess theG25 sample, luminous efficiency of 35 to 55 lm / W, the report shows, although LEDG25scompared to halogen lamps, led high bay, energy-saving lamps more suitable for application in thestore shelves lighting. MR16 and PAR20LED of sample test results better, 8 PAR30sample being tested luminous efficiency, luminous efficiency of 50 to 55 lm / W in theenergy-saving lamps, plus or minus.
The test sample color temperature range of 2500K ~ 6000K, most of the samples in the2700-3000K range of. The entire test, the color difference was significantly lower pricesto the poor color rendering, color rendering index of some samples below 70, high powered led bulbs, most of thesamples is about 80.
But some samples in the test products exist size and shape, length of 6 11 A19 bulbdoes not meet the American National Standards Institute (ANSI) specification, 5 PAR20sample, there are two sizes too long, 9 PAR30 samples four dimensions is too long.
The report also pointed out that most manufacturers seem to be concentrated inhigh-lumen lamps, apartments and small rooms require less light output, on the contrary, high powered led bulbs, the market is difficult to find the standard light bulb of 400 lumens.

golf takes high powered led bulbs

“Golf” is a transliteration of Dutch kolf, means a better life in the green and fresh oxygen. Golf is a stick hitting the ball into the hole. Today, golf has become a synonym for the noble sport, but it was invented by a group of shepherds! “Golf,” the original intent of the “good life” in the green space and fresh air. It is an enjoyment of nature, fun, physical exercise and games rolled into one movement.

golf takes high powered led bulbs

high powered led bulbs use led streetlight. golf takes high powered led bulbs, so, if we want to have a better future, high powered led bulbs could be our first choice.high powered led bulbs is non-toxic materials, unlike fluorescent lamps containing mercury pollution caused bythe high powered led bulbs can also be recycled. No ultraviolet and infrared spectra, neither the heat nor radiation, glare, cold light source, it is safe to touch, is typical of green lighting

“Golf” is a transliteration of charge golf Lanvin kolf the meaning is “good life” in green and fresh oxygen. This you can see, golf is a noble entertainment in beautiful surroundings. Because playing the gaming device is expensive, so in some countries called it “the aristocratic ball. Golf is a stick hitting the ball into the hole. Today, golf has become a synonym for the noble sport, but it was invented by a group of shepherds!

According to legend, Scotland is the birthplace of golf, when the shepherd often used to drive sheep stick to hit stones, the game hit far and prospective, which is the early game of golf.
The 19th century, golf was introduced to the United States. In 1922, the world’s first international competition is the United States to Britain, “Walker Cup” Golf Tournament. Golf was introduced into China in the early 20th century. Golf in the vast outdoor grass, of 9 or 18 hole. Athletes one by one ball into the hole, hitting fewer wins. The game generally points to both singles and groups.
In 1860, England held the first Open Golf Championship. This year, India, Canada, New Zealand, the United States and other countries have also to organize competitions, then international, intercontinental until international competitions. World Cup, England and the U.S. Open three competitions, we can say is the highest level of golf competition.

golf takes high powered led bulbs 01

The “pill” record chuiwan game is mutual respect for each other, and consider how to hit the ball from each other’s position, is a very gentleman’s sport. Painting of the Yuan Dynasty “push pills wall paintings also proved the chuiwan golf.
Dwarfed by the Ming Dynasty Emperor Xuanzong diem map also confirms this view. Physically robust Xuanzong hand-held rod is staring ahead, as if thinking about how hitting a ball. Establish a desire to the middle of the tree resembles a large windows. Xuanzong to prepare a ball hit over a tree about 10 meters. This painting corner of the caddy came running up armed with clubs. This is the earliest portrayal of golf.
In fact, “chuiwan” Chinese mainland step play “to evolve from. As to whether the effect in the when is not known. “Chuiwan book was the detailed description chuiwan rule book.

Whack-ball style of play and golf. Such as “wooden ball children playing chaotic, they fall in the nest, the blow from the ball children from falling into the nest wins the ball line, or Jumping, or from the oblique, or rotation, each with the nest where the should, “or standing hit, or Guier hit, program a lot”. Describes very vividly: playing, only stood the ball playing Lao Gao, blow from the ball in the air, curved slide, to cross the “barrier” to fall into the nest by the winner. Like today’s golf tournament, when the chuiwan there is side spin, internal and external topspin hitting way. Moreover, in addition to the batting style standing knees hitting style, a variety of positions.