CowboyStudio Set of Two 105 Watt, 5500 K Fluorescent Daylight Balanced Light Bulb for Photography and Video Lighting
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- Two (2) 105 watt bulbs
- Incandescent equivalent: 400 watts
- 9" Tall x 2 3/4" Wide
- Average life: 8,000 hours
- Color temperature: 5000 K
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This item: CowboyStudio Set of Two 105 Watt, 5500 K Fluorescent Daylight Balanced Light Bulb for Photography and Video Lighting
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|Sold By||Amazon.com||KimOutlet||Fovitec||ALZO Digital|
|Light Source||CFL||Fluorescent||Fluorescent||Compact Fluorescent Light (CFL)|
|Wattage||105 Watts||105 Watts||105 Watts||85 Watts|
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5000k daylight compact fluorescent standard spiral bulbs are an excellent choice for digital camera photography. They generate a close match to natural daylight and a crisper view of the items being illuminated.
Top Customer Reviews
Serious photographers and videographers may want to read all this info about multiple CFLs tested. Others can skim it for the CowboyStudio 105 watt specific evaluation.
I have been testing CFLs for a couple important projects that need continuous light. The tests include measuring light falling on the subject (measured in LUX with a Lux meter and confirmed with a Sekonic Digital Incident Lightmeter), color temp/quality, and actual power consumption. Since a lot has gone into this, and the results are "interesting" especially in terms of this specific CFL, I decided to share my opinions. Apologies for another long, but fact filled, review :-)
The tests were all conducted with bulb warm-up times > 30 minutes, professional digital light metering, test RAW still images of a Kodak Q-60 target, and continuous monitoring of power factors. I also tested 3 100 W incandescent bulbs to see how efficient these CFLs really are.
Against incandescent lamps, including one with an encapsulated Halogen source, these CFLs generate 5 to 6 times more illumination per watt consumed! For real! This means having lots of light to work with with far less heat, power consumption and fewer blown circuit breakers on location!
The good news is that CFLs come out very serviceable and and efficient . . . but this "105 watt" CowboyStudio CFL is at the back of the pack. Way back.
Amazon sourced Full Spectrum/Photo/Video CFLs tested included:
CowboyStudio "105w": ...Read more ›
Using a Da-Lite projector screen as the background and a standard desk lamp as the housing for the light source (I don't have a studio lighting setup yet), I set my Canon T2i to raw mode. Except for auto exposure, the camera does not do any auto processing including ISO. The photos are then imported into Photoshop without any kind of enhancement. The center point of the image is sampled and Photoshop can tell me the color composition of that sample.
For comparison purposes, I also measured two other light sources: Canon 430EX flash light and Feit 18W(75W equivalent) household CFL with "Daylight" color temperature. The results are color charted in Excel and uploaded to this product page above. They are surprising.
To be "full spectrum" or white (either terminology is not quite precise), the strengths of the three prime colors need to be equal. The strength is number between 0 and 255. (0,0,0) is pure black and (255,255,255) is pure white. Human eyes are usually quite tolerant of difference in the single digit range. Most people, including me, would expect the $300 Canon speed light to be a very color neutral light source. But no. It actually has a visible blue tint. It is only marginally better than the $1 Feit "Daylight" household CFL. I am not suggesting that a flash light and a CFL are interchangeable, it is nevertheless disappointing that the Canon can't get a tight color balance in that expensive device. The best one, by a significant margin, is the Cowboystudio photo CFL.Read more ›
The light quality is quite close to 5500k, but as with all flourescents they have a green spike that causes them to show up as just a little green when shooting on the daylight preset of a camera. I get whiter whites with the florescent preset.
Using the rule of thumb that florescent lights use about a fifth the power of tungsten, this would be about the equivalent of a 100 watt bulb. Not bad, but don't count on more light than that.
Most Recent Customer Reviews
these are not the same as the picture. They used to be the same as the picture, they were a great product then, but they have since substituted them for a cheaper version that is... Read morePublished 1 day ago by swagg
These lights work great for any portrait shoot. No need for Halogen lights.Published 23 days ago by C. William Hartmann
These bulbs literally stopped working after 30 minutes. I bought these for a specific job and they shut down before we started rolling. What a waste of time and money. Read morePublished 1 month ago by Andrew Gardner
I have some shaded lamps in my living room which require an extremely bright light source to illuminate the room. I like the color spectrum and intensity of these bulbs.Published 1 month ago by Peter Kuykendall
Lights work fine for taking indoor photographs with my digital camera.Published 3 months ago by M. Streeter