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#127672 - 09/28/01 08:21 PM light vs. $$$  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
Daylight savings is just around the corner, so of course we'll all be doing a lot of 'light calls' as usual.
I get a lot of Q's about efficent lights, what's good, what's not, what to look for, etc.
The hardware stores and depots are full of choices, but not all are marked with the same info.
Myself i look for wattage vs. lumnems, but it may not always be on the package.

Any suggestions out there??


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#127673 - 09/28/01 09:28 PM Re: light vs. $$$  
Anonymous
Unregistered

Lumens don't tell you the color.

I hate to be the one to break this to you, but DST is here. Soon we'll be going back to standard time. It doesn't really make sense that we are on standard time less than on daylight savings time... but that's the way it is. (Offer void in Indiana, Illinois, Arizona, etc.)


#127674 - 09/30/01 03:15 PM Re: light vs. $$$  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
Lumens don't tell you the color.

ah yes....K factor....the whiter it is , the greater visible spectrum it addresses corect? 40nm-700nm.... [Linked Image]


#127675 - 10/15/01 01:51 PM Re: light vs. $$$  
WARREN1  Offline
Member
Joined: May 2001
Posts: 176
Greenville, SC, USA
Try this:
http://www.SYLVANIA.com/prodinfo/news/
The Sylvannia catalog can provide much info on all types of lamps.
And if more info is needed on color, try the IES Handbook. Color is rated in degrees Kelvin, and 4100K is a yellow color (if my memory serves me correctly), 3500K is more to the natural sunlight. We typically use 4100K bulbs in some pharmaceutical manufacturing process areas.



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