[Boatanchors] CFLs
Bob W5UQ
W5UQ at att.NET
Sat Jan 1 10:45:10 EST 2011
has anyone, and I haven't read ALL the threads, addressed degrees Kelvin
and color temperature with the lamps?
2600 degrees K is more like sunset light... lots of yellows and reds.
5000 degrees K is more like hot sunlight... more white and less yellows
and reds.
Actually HOT over head sun gets as high as 15,000 degrees K.
By the way.... WHITE in light is the "presence of all colors". The
whiter it is, the wider the freq spectrum and balanced spectrum.
More trivia or interesting "stuff":
Food prepared in a kitchen with 2600 to 3600 degrees K is "more pleasant
to the eye"... hence, candle light dinners are more romantic.
Food prepared under 5000 degrees K (daylight) isn't as pleasant and
doesn't taste as good... (psychological):-)
Most people don't even realize the differences UNTIL they see the lamps
side by side.
Then the 3200 degree K lamp turns red/yellow next to the daylight 5000
degree K lamp.
My pet peeve is that they do NOT print the degrees K on the lamp boxes
sometimes. AND then they like to attach names to them like daylight and
soft white.
I get the daylight, but what is soft white? Soft white to one
manufacturer is probably one thing and different to another.
Due to your CFL email threads, just seeing bunches of them, I realized
that I could not see the rigs on my work bench as good as I needed.
I've kept an LED flashlight there to look at parts closer, etc. :-)
So when I found some OLD work lights in the garage, that used screw in
incandescent lamps, I got an idea. I got two 75 watt (apparent light)
daylight CFL's and replaced the old fashion yellow/red bulbs.
I clamped the two worklights onto my test eqpt shelf right above the
gear. BOY... I can see now. Well, except for a bit of a glare...so I
have repositioned the fixtures a bit...
But you guys gave me the idea... THANKS GUYS....
Wonder why my old brain didn't figure that out earlier... hee hee.
HNY......
Bob Hardie W5UQ
retired and having fun
and the beat goes onnnnnn!
W5UQ.com
A25UQ, V31UQ& VP2EEU
QRZ.com is accurate for all.
More information about the Boatanchors
mailing list