64 of 72 people found the following review helpful
not 45 watt,
Verified Purchase(What's this?)
This review is from: CowboyStudio 45W Compact Fluorescent CFL Daylight Balanced Bulb with 5500K Color Temperature for Photography and Video Studio Lighting (Camera)
i checked the wattage of these bulps and they are not 45 watts. they average 23 watts (22-24 watts).
i measured the bulbs with a kill-a-watt meter.
they are also not the same as what is pictured, but another bulb the Cowboy Studio lists on amazon.
I also tested other bulbs for comparison:
14watt nuvision 5500k was 13.5watts
23watt greenlite 2700k was 19watts
so the cowboy studio 45 watt CFL was 50 percent under power compared to 5 to 15 person under for the other tested bulbs.
this is very deceptive and I would ask the company why are they doing this?
photographers buy based on light output so why lie about wattage?
they also say this compares to a 225 watt incandescent, does it? would be interesting to see if anyone has tested with a light meter.
i would beware of any cowboy studio product since they are so willing to misrepresent what they sell.
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Showing 1-5 of 5 posts in this discussion
Initial post: Feb 24, 2012, 6:24:17 PM PST
Thanks so much for the info, I would have never been able to have done the test myself on them.. I agree misleading information is not the way to to a photographers heart.. WIll be watching what I purchase from the cowboy studio Thanks BP
Posted on Jul 21, 2013, 10:54:17 AM PDT
Julio C. Oyarzabal says:
You are comparing potatoes to water melons. Unless you measure the light output, power consumption measurement it is completely worthless. Watts measure how much the device it is consuming, and not how much light it is putting out. 99 of the consumption can be in heat instead of light. A 20 Watt incandescent light bulb emit less light than a 20 watt T-5, or a compact florescence because most of the consumption of the incandescent light bulb goes into heat.
Now to top it up, your methodology of measurement it is flaw. When measuring current you should use a calibrated multimeter, or an amp meter. There is definitively a marketing interest in the "kill-a-watt meter" to show that the device it is consuming less than it should.
In reply to an earlier post on Oct 5, 2013, 5:13:50 PM PDT
Cory Roberts says:
Ummmm, no, Kill-a-watt is accurate, read the reviews there. They are falsely advertising, there is no such thing as 23 watt cfl that puts out the same light as a 45 watt cfl.
Posted on Jun 5, 2014, 11:04:29 PM PDT
Bruce C. says:
This review is so funny. The person has no clue about wattage and how fluorescent bulbs are reactive power. Also light watts must take into account the spectrum frequency. As a professional in this field is is amazing how so quick people jump to conclusions when they have such limited knowledge or education!
In reply to an earlier post on Jun 5, 2014, 11:08:35 PM PDT
Last edited by the author on Jun 5, 2014, 11:09:39 PM PDT
Bruce C. says:
I hope everyone realizes that if you read the advertisement you would see they are comparing CF light luminosity to incandescent light luminosity. No false advertising, just consumers who are confused as to what the technological terms mean.
Electrical watts and light watts are not the same!!!
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