Does anyone have any of these ws2811 rgb led modules? or any similar ones? http://www.aliexpress.com/store/product/Mini-ws2811-controller-20pcs-LED-digital-module-WS2811IC-5050-3LEDS-DC12V-input-waterproof/701799_654706233.html I think they all pretty much use the same housing. What I am trying to find out is the MEASUREMENTS of each unit. The description says: 1cm x 1cm x 1cm (0.39in x 0.39in x 0.39in) But that would be a cube?! Photo clearly shows rectangular. Does anyone have any they can measure? in inches?