Quote:
Originally Posted by sphelps
Steve are you talking about a power supply or driver? If the driver runs off 120VAC then obviously you don't need a power supply but some drivers already discussed require a lower voltage DC supply so you need a separate power supply. The driver must be constant current but the power supply only needs to have enough power (watts) to run the driver(s). The voltage of the supply is also important and dependent on how many LEDs are in each array for each driver.
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I am tazlking about a driver and power supply in one unit. I have looked at both ways and find no advantage to one over the other aside from a all in one unit "can" under the right situations be cheeper and the end result is usaly much cleaner.
the units I was talking about will self adjust to a requirment between 64 and 114 volts. the TR are a little more cost wise than meanwell but they have the higher capacity ie. this one will handle about 33 LEDs (max), they dont have the inrush problem that the mean wells have. as well as they also have a built in 10V reference voltage so for manual dimming all that is required is a pot.
heres a link to the info sheet on them
http://www.thomasresearchproducts.co...2001-31-11.pdf
Steve
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