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I know that this has probably been asked a million times, but I am anxious to see if my calculations are right for my first lot of pixel modules I am using. I am using the following modules from Ray Wu

20pcs/string waterproof led pixel module,4pcs SMD RGB 5050,1pcs WS2801,256 gray level,DC12V,0.96W

If I have 100 of these am I right in saying that they use

100 x 0.96W= 96 watts? Is it as simple as that?

So for a 350watt PSU, I can have 350watts x 80% = 280 watts usable or about 291 modules in total, less the resistance in the supply cable (see next section)

My lights are about 10m away from the start of the lights and I plan on using some low voltage cable I have which is heavty duty 3.3mm or 12 Guage. The resistance on the wire is 0.0057 watts per meter and there are 10 metres for the + and 10 metres for the N wires = 20 metres in total which gives a total of 0.114 watts which looks pretty low. Is this correct? Should I also take into account the fact that there is thin wire between each module which would also have some higher amounts of resistance?

Many thanks

20pcs/string waterproof led pixel module,4pcs SMD RGB 5050,1pcs WS2801,256 gray level,DC12V,0.96W

If I have 100 of these am I right in saying that they use

100 x 0.96W= 96 watts? Is it as simple as that?

So for a 350watt PSU, I can have 350watts x 80% = 280 watts usable or about 291 modules in total, less the resistance in the supply cable (see next section)

My lights are about 10m away from the start of the lights and I plan on using some low voltage cable I have which is heavty duty 3.3mm or 12 Guage. The resistance on the wire is 0.0057 watts per meter and there are 10 metres for the + and 10 metres for the N wires = 20 metres in total which gives a total of 0.114 watts which looks pretty low. Is this correct? Should I also take into account the fact that there is thin wire between each module which would also have some higher amounts of resistance?

Many thanks