DOE new round of test results show that the cost of replacing the LED lamp down to $63/klm

The U.S. Department of energy is a new round of LED to replace the lamp test report will be completed in a few weeks. This work was carried out at the Pacific Northwest National Laboratory (PNNL), and the test products included A19, G25, MR16, PAR20 and PAR30. The previous round of test reports, although only 14 months ago, LED replacement lamp cost decreased significantly, from $130 / thousand lumens down to $63 / lumens.

PNNL lighting engineer Michael Royer pointed out that the minimum and maximum light efficiency of the lamp has been increased to 36 lumens / watt to 72 lumens / watt, the average value of 53 lumens / watt. But the scope of the light effect is even greater. He believes that this is the result of continuous pursuit of lamp manufacturers to diversify the product type and adapt to the needs of the application results. The average value of the test was reduced to $0.49 / LM / W from the previous round of $0.69 / LM / W.

Average luminous efficiency of A19 60lm/W

This round of test evaluation of 11 kinds of A19 lamp, the average luminous efficiency of 60 lumens / watt, power consumption of <10W in the range of A19 lighting effect in the range of 50-55 lm/W, >10W light efficiency range of 55-70 lm/W. Within the range of the previous test was narrowed to less than 20 lm/W.

LED G25 is better than store halogen lamp but inferior to CFL

This is also the first round of testing evaluation of G25 lamp, the effect is in the range of 35-55 lm/W, said the assessment of Royer halogen lamp LED G25 better than the store shelf sale but inferior to CFL.

MR16 and PAR20 LED have outstanding performance advantages

MR16 and PAR20 LED lamp has a great performance advantage over traditional lamps. The measured 8 PAR30, evenly distributed in the efficacy of 50-55 lm/W on the CFL benchmark above and below the light effect.

Royer explained all the test PNNL test of no 'energy star. ". But he pointed out, "PNNL assessment of 38 products in line with the" Energy Star "requirements of the 23. Even if it does not conform to the product, its light efficiency is also in line with the energy star standards. "

Increase in the number of CRI>80 lights

The correlated color temperature (CCT) of the tested lamps ranged from 2500K to 6000K. But most in the range of 2700-3000K, similar to the existing traditional incandescent lamp light source. The color change (CRI) range is large, the cost and the color contrast, color rendering is not good enough, the general price of the product is the lowest. Some lights are below 70. However, Li pointed out that, compared to the first round of the test, the number of CRI>80 lights increased, the overall color rendering is stronger than CFL, said.

'Energy Star' pass rate increased from 6% before the recent rise of up to 15%

Royer also mentioned that the manufacturers to participate in 'Energy Star' test qualified rate from 6% before rising to 15%; the lamp with 'Lighting' label Facts increased from 29% to 61%.

Size problem

The test of a total of 11 A19 lights, of which there are 6 longer than the American National Standards Institute (ANSI) regulations. 2 of the PAR20's 5 test lights are out of standard length, and the PAR30's 9 test light has a maximum of 4.

It's hard to find 400 lumens of light

Royer said there, the problem of high intensity. Manufacturers can produce bright lights that are low in power but brighter than fluorescent lights, which can cause glare and produce more light than lighting. Low lumen replacement lamps are "inexplicably disappearing"". Most manufacturers seem to be focusing their attention on the high current light. In some cases, we only need less lighting, such as apartments and small rooms, but it is difficult to find a 400 lumens of light.

Note:

Test fixtures include 18 manufacturers of the production of the 38 lights (see table below), purchased from an anonymous purchase of the 9 retailers, in the summer of 2011 to buy the test began in autumn. Each lamp purchased and tested 3 samples. LM-79 photometric test was carried out in the laboratory.

First round (RRL1)

Second wheel (RRL2)

Date of manufacture

2010 7-8 months

November 2011

Total product:

Thirty-three

Thirty-eight

Product type:

MR16/PAR16 11

MR16/PAR16 (GU10) 9

PAR20/R20 4

PAR20/R20 5

PAR30/R30 7

PAR30/R30 8

A19 5

A19 11

B10 (lamp) 4

G25 5

C7 (night light) 2

Retailer

Ace hardware

Ace hardware

Beijing

Beijing

Home Depot

Home Depot

Lowe's

Lowe's

target

target

Wal-Mart

Wal-Mart

Sam's Club

Amazon

Sears

Good city

Monards