I am planning to replace about 50m of ropelights with pixel strip. In order to make it easier to mount The strip will be mounted in 5m lengths of "air seeder hose" The strip is 12v in 5m rolls with 30 LEDs per meter. Is this too long a gap between power inject points? Does 30 LEDs per metre mean 30 control points or do I multiply by 3 channels ? If I divide the roof into two sections that will mean each section will have 783 LEDs The 783 pixels will draw how much power? Any info would be gladly accepted.