After looking at the various
LED lights at
www.superbrightleds.com I couldn’t make up my mind, so I ordered one of each of the three I was interested in. I then compared them with the 921 bulb that came standard in the interior of my
EggCamper. The "measured wavelength" was taken from my camera RAW file for each picture. Following are the specs for the 921 and the three LEDs I ordered:
921 (warm white)
1.4 Amp
3350 nm Measured Wavelength
Cost: less than a buck
T10-PCB-WHP9 (warm white)
190 mA Current Draw
92 Lumens
3100 nm Dominant Wavelength (3600 nm measured)
Cost: $21.95
WLED-WWHP10-D (warm white)
195 mA Current Draw
98 Lumens
3100 nm Dominant Wavelength (3550 nm measured)
Cost: $14.95
WLED-CWHP10-D (cool white)
205 mA Current Draw
111 Lumens
7000 nm Dominant Wavelength (5050 nm measured)
Cost: $14.95
Picture one shows the four bulbs, from left to right: 921, WHP9, WWHP10-D, and CWHP10-D
Picture two shows the backs of the two types of LEDs. The electronics for the WHP9 is contained in the black bundle in the cord. The electronics for the two CWHP10
lights is contained on the backs. It didn’t matter how I plugged them in, they all worked either way, (actually there was only one practical way to plug in the CWHP10 lights). There was plenty of clearance for either type, but with the WHP9 I had to lay the
light directly on the fixture diffuser, (shouldn’t be a problem), and had to tuck the cord out of the way.
To show the brightness and coverage of each
light I photographed all four in the same fixture and at the same f-stop and shutter speed. I took the pictures in RAW so the pictures would give an idea of the color temperatures.
Picture three – 921
Picture four –WHP9
Picture five – WWHP10-D
Picture six – CWHP10-D
[attachment=31613:6___CWHP10__Small_.jp
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The results? They were close to equal brightness and coverage; the differences weren’t significant as far as I was concerned. I was really surprised the 921 wasn't a lot brighter than the others. I did like the warm white better than the cool. Therefore, I decided to go with the WWHP10-D since it was only $14.95 and had the easy plug in fixture without the long cord that you have to tuck out of the way. From the pictures it does look like the WHP9 gives a more even
light, but I didn't notice any real difference when I tried them out; I'll have to do more investigating to see if there is any practical difference.