I Know This Has Been Hashed Over On Az But I Can't Find Parabolic Lens At Lowe's Or Home Depot As Refeered In Other Post. Any More Suggestions ? I'm Thinking About Putting Up 2 - 8 Foot Shop Lights, That Have Hoods On Them, Side By Side And Build A Light Weight Frame Around Them Where I Can Slide The Lens (if I Can Find Them) Into. Bad Idea ? I Need All The Light I Can Get.