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RGBW watt reading way off?


rbhun
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Hi

 

I am wondering how precise the wattage reading is on the RGBW controller.

 

In my bedroom I have about 8 meters of 24V RGBW led strips. According to the manufacturer, they draw about 20W/m, so we installed 160Ws of power supply. at around 85%, the leds cut out, and start to blink. Apparently either the PSUs dont deliver, or, more likely, some power is lost on the cabling etc. Not a big deal. Since these are ambiance lights, I never need them full power, so I decide to limit the maximum brightness in the advanced settings of the RGBW controller in HC2. 

 

I started gradually increasing brightness until I found the allowed maximum...and to my utter suprise, the wattage reader says 75 watts...that cannot be right. if it would be one single 100W PSU I'd accept it to choke at 75W, but thats unlikely, these modern units deliver nicely. I am thinking it might only measure one leg, as I have a 100W and a 60W PSU wired together to deliver the 160W, but I dont see how that can be done from an electrical standpoint. Anybody?

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