There is another thread about solar tubes here somewhere..
To answer your qestion about wether this is a DIY project; yep.
This is the only skylight I would recommend to a homeowner who wanted to install a skylight in their home themselves. The instalation is quick and there's no drywall to finish, no painting to do, no trim or fancy framing in the ceiling. A few blocks cut to fit between the rafters and ceiling joists. Not a bad project for a weekend. Makes an incredible difference inside your home. The light diffusers inside, look like fixtures. The shape spreads the light more effectively through the room, without so much direct radiant heat.
Long term. This is an investment. It will require maintenance, but it's minimal. Keep it clean inside and out and it will last longer.
Thanks for bringing this up again,
It's a cost effective way to improve a home in short time.
That's part of what this forum is all about.
Welcome to the forum!