Randomblame
Well-Known Member
May I ask the source of your information? At what ambient air temperature and density do the F-strips stabilize at 65C? Is the test done with the strip mounted to something or suspended "naked" in the air? Temperature certainly can be regulated, I've done it on cobs by using a water block heat sink and varying the water temperature. If temperature can't be regulated, how can manufacturers provide graphs of voltage and flux etc. vs temperature?
All info's are from the datasheet.
They tested the strips at 1120mA. There is no water cooling, other cooling or temperature regulating method mentioned so bare strips are used. Min. and. max. values are usually calculated. There is a Samsung paper about their testing methods but I can not find it again, s***!
Edit!
The mid power led calculater gives also some good hints to the testing methods, simply have a look at the standard values applied for ambient temps and such things. They tested with room temp 20°C.
http://www.samsung.com/global/business/led/support/tools/calculator-pkg
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