|
在PETER GRANSEE,ARC FLASHLIGHT, LLC. 业者的要求下,美国Arizona州Lighting Sciences Inc of Scottsdale, 独立实验室近日完成了这个测试。
看看他们使用的测试仪器:
测试结果原文,BY PETER GRANSEE:
Ok, we got the results!
Disclaimer: These results were produced by Lighting Sciences Inc of Scottsdale, Arizona. They are an independant testing lab and were recommended to us by Lawerence Livermore Labs. These tests were done on a 2 foot integrating sphere and lab grade equipment. The nX number indicates how many of each light was tested. The larger the number of lights tested, the wider the range of results and the more likely that a typical unit will fall within that range. The first measurement is in lumens which is indicator of total photon output. This provides a better indicator of total power compared to other measurements like foot-candles or lux. The second measurement is of color tempureture. It is also done with the intergrating sphere so it is an average of the total beam. All the non-High Dome/incandescent units actually have a colder center beam than the corona. But the integrating sphere \'integrates\' the entire beam so the units measure warmer than they may actually appear.
Please understand that there are variations from flashlight to flashlight. The particular unit you have may be quite different.
Also, all these tests, except for the Maglites, were done with new batteries installed. This is a more realistic result than using a power supply. The Mags were done with a 1.5/3v power supply and removed from the flashlight (just the bulb was measured. I removed 15% of the output to account for reflector losses and battery voltage sag. Even so, these numbers could be off by 5% or so.
All measurements were taken within the first minute of operation. Most of these lights (even the regulated ones) settle over time to a dimmer level. The regulated lights settle the least so the numbers below are closer to average output. For example, the unregulated E2 is rated at 60 lumens by SF. The light will start out at 80+ lumens and over a period of minutes, settle down to the rated output.
[B]1x AWS-NAT: 3 Lumens / 9640 Kelvin
2x AWP-NAT: 3 Lumens / 6200-6900 Kelvin
2x LSL-P: 21-23 Lumens / 6770-7300 Kelvin
2x LSH: 14-17 Lumens / 5100-5400 Kelvin
5x LSH-P: 22-25 Lumens / 5300-5800 Kelvin
1x KL1: 19 Lumens / 5900 Kelvin
1x E2: 85 Lumens / 3300 Lelvin
1x L1: 26 Lumens / 6300 Lelvin
1x X5T: 13 Lumens / 8400 Kelvin
1x L4: 81 Lumens / 5300 Kelvin
Mag 2AA: 4-8 Lumens
Mag 2D: 25 Lumens
Solitaire: 2 Lumens[/B]
LIGHT SOURCES / COLOR TEMPERATURE (Kelvins)
Candle 1,930
Sunlight at sunset 1,900 - 2,400
Domestic tungsten light bulbs 2,600 - 2,900
TV studio tungsten lighting (2000 Watts) 3,275
TV studio tungsten lighting (5000 Watts) 3,380
Sunrise, Sunset 2,000 -3,000
Fluorescent tube 4,800
Noonday sun 5,000 - 5,600
HMI and MSR lights 5600K
In shade ( light only from hazy sky) 7,500 - 8,400
In shade ( light only from Blue sky) 12,000 - 20,000
Peter |
|