On Fri, 31 Oct 2003 21:19:55 +0000, PoP wrote:
The kit comes with two inserts which can be shoved into the LED hole.
One is a prism which turns the beam 90 degrees (can't think of a use
for that, but it's there if I need it).

Putting a straight line on the floor/ceiling? (Assuming you can use it
together with the fitting to shine a line)