John is right, Tony put ice lights on his IVP and my partner and I bought the plane in 2001.

When we had the first annual done we discovered that the edge around the lights showed some small cracks and upon further investigation we saw that the only thing maintaining the pressure vessel was the lens of the light itself.

For these two reasons and on the advice of our "Hired Gun" Lancair DAR Charlie Kohler we had the lights removed and covered over the hole.   I believe this made it safer in terms of holding pressurization and as for looking for Ice I have just used a 2 inch mag lite which works fine for seeing the leading edge of the wing.

Hope this helps

Regards,

Dave Riggs
Hollywood CA