White 16 Pixel strands With Pixie Controller... Length

[purdurnr]

Looking to outline my windows... close to 16 street facing.

2 questions:

1. How long are the 16 Pixel strings that come with the pixie controller starter kit?  They say 50 per string, but not the spacing?

2. Can I splice and extend to have the 16 reach the different windows?  How do others get the 16 spread out over a home.  Not extension cables... so what advice on that?  Or are thes not good for outlining windows?

Interested in feedback/advice.

Thanks!