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bur01014 View Drop Down
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Joined: March 02 2010
Location: Salt Lake
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Points: 1435 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bur01014 Quote  Post ReplyReply Direct Link To This Post Topic: LED & PAR Experts
    Posted: January 18 2011 at 10:01pm
Just had a quick question.....of the typical cree cool white and royal blue leds, which one has the greater par?  With other lighting, it appears, the white bulbs have a little more par, so is this true also with leds?  Reason I ask is because on my led strip I run the royal blues a little harder because I like the bluer look, but if the cool whites pack more PAR punch, then I may start pushing them to their potential a few hours a day as well.  Thanks
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Adam Blundell View Drop Down
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Points: 18526 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Adam Blundell Quote  Post ReplyReply Direct Link To This Post Posted: January 19 2011 at 10:02am
I've done a lot of testing on the par38 bulbs. I was surprised by how much par the all blue produced compared to the white.  

Try reading this first 


Adam
ps- I also have some led fixtures and a par meter if you want to  head over here sometime to see them for yourself
Come to a meeting, they’re fun!
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Ryan Thompson View Drop Down
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Points: 3546 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ryan Thompson Quote  Post ReplyReply Direct Link To This Post Posted: January 20 2011 at 9:07am
Blue and white LED's put out the same amount of PAR.

Only in halides do the whiter bulbs create more PAR. The highest PAR T5 bulb is the ATI Blue Plus and they just released their new bulbs that have about 10% more PAR than before.
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