What is an instant light shaft?

The Instant Light Shaft is faster, cleaner, more efficient and�cost-effective than traditional drywall installation. It can be installed in an hour versus 20 hours over 3 days -�it's that easy! Works on all "box" type,�90� light shafts (no flare). 16" standard depth (trim to actual on site). All other pieces are pre-cut to size to be site assembled. 4" minimum spacing required around all sides if multiple skylights are installed