In another thread, Lighting on a Budget
, photopro34 writes about his use of home depot lights. In his post, he says, "I use a special screen to diffuse the lights." When asked about the screen, pp34 prefers keeping his secrets to himself which is cool, altho it sounds suspiciously much like MacDonalds claiming a secret "special sauce" on their Big Macs. BUt it looks to me like he gets terrific results with HD Lighting and his special screen, so maybe--if I were him--i'd be keeping my special screens secret as well!
Personally, I don't--as a rule--shoot with HD lights, but i have for video shoots when we've used them as practicals. So here's a a little "secret" I learned and would like to share with anyone who uses HD lights.
Remove the protective safety glass that is in the light's chassis in front of the quartz halogen bulb. (do this with the lights unplugged, please) look in the yellow pages and find someone who does sandblasting of machined parts. go there and ask them to lightly sandblast the glass on both sides. (they might even do it for free, but if not, they'll probly only charge you a few bucks.) re-install the glass plates. the sandblasted glass will now be muc softer and really nicely diffused.