CoolLight

February, 2007

Cool Lights Biax Bulb Tests Posted

Tuesday, February 13th, 2007

I just put up the test results for our bulbs. I’ve had them for a long time and had been meaning to put it up but finally got around to it. We also included a test report of an Osram Dulux L 3200K bulb for comparison purposes. You can find the test results here.

Cool Lights 5600K 55 watt Test Results

Tuesday, February 13th, 2007

In the interest of full disclosure, we are publishing our test results for the 55 watt bulbs. This is our 5600K color temperature PL Biax bulb. The test report, is for the most part, self-explanatory. It is run using an Integrating Sphere (see our Article on Color Temperature and Color Rendering Index). As would be expected, 2 or 3 bulbs are usually chosen at random for testing from a batch produced by a factory. You can find our 3200K test results here.

This is a color version of the spectral energy distribution. It is much more intuitive and quick to look at in this kind of color graphic representation.

Cool Lights 5600K

The spectral energy distribution

Here is a scan of the actual test report output from the Integrating Sphere’s spectroradiometric computer. It shows all the parameters and specifications that are normally measured for any light source. Of particular interest, the color temperature of this randomly chosen bulb was actually 5430K and the CRI (also known as “Ra”) was 88.2. Lumen output was 2891.

The actual test report

Cool Lights 3200K 55 watt Test Results

Tuesday, February 13th, 2007

In the interest of full disclosure, we are publishing our test results for the 55 watt bulbs. This is our 3200K color temperature PL Biax bulb. The test report, is for the most part, self-explanatory. It is run using an Integrating Sphere (see our Article on Color Temperature and Color Rendering Index). As would be expected, 2 or 3 bulbs are usually chosen at random for testing from a batch produced by a factory. You can find our 5600K test results here.

This is a color version of the spectral energy distribution. It is much more intuitive and quick to look at in this kind of color graphic representation.

Cool Lights 3200K

The spectral energy distribution

Osram Dulux L 3200K

The spectral energy distribution

Here is a scan of the actual test report output from the Integrating Sphere’s spectroradiometric computer. It shows all the parameters and specifications that are normally measured for any light source. Of particular interest, the color temperature of this randomly chosen bulb was actually 3147K and the CRI was 88.5. Lumen output was 2890.

The actual test report

Here is the test report for the Osram Dulux L 3200K. Color temperature of the bulb was 3007K and the CRI was 88.6. Lumen output was 2565.

The actual test report

EP#002 – The Amazing Universal Yoke Adapter

Saturday, February 10th, 2007

It may seem like trivia but the hardware you use to mount your fixture to a stand or a grid can be a part of making or breaking its performance and usability. While in China, I came up with a bit more elegant solution than I had before to the problem of mounting a DIY fixture on a yoke. See how the “Amazing Universal Yoke Adapter” works in this edition of the Cool Lights Video Magazine.

Click below on “more…” to see the video.

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EP#001 – Attaching Barndoors to a Worklight

Monday, February 5th, 2007

I just completed the first segment of my Video Magazine where I can demonstrate ideas more effectively in the video medium. Our first edition deals with adding barndoors to a halogen worklight (or one of our fluorescent “halogen conversions”).  We show you how to make your own or use our CL-BD4 Barn Door Ki t to save time.

The accompanying download for the CL-BD4 barndoor template can be found here.

Click below on “more…” to see the video.

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