The WS2811 strips mentioned here have 3 leds for each pixel. So, with 10 ICs per meter, and 5 meters there will only be 50 controllable pixels. It will work with SSCs -- but may not be what you want.
If you are trying for 150 pixels, use the TM1809 strips and have Ray customize them to 5m lengths.... but then you exceed the 128 max pixel count allowed by Zeus and SSCs described by tbone321.
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Loginback to the original question... what about power? the TM1809 strips use 7.2W/meter -- 5 meters is 36 watts. 12v will be 3 amps for the 5 meters.
the specs for the WS2811 use 5.76W/meter -- or 28.8 watts for the 5 meters and 2.4 amps at 12V.
So... power looks good.