R1991

We recently received an email from a well-known lighting designer asking a pretty basic question about our Protective Filters. Here is their exact email: “In Lightwright, we have always put down IRHS (infrared heat shield). Finally, after too many years of the shops and electricians asking “what’s that,” I see the sheets at the back of the Roscolux swatchbook. I use the IRHS to keep the R79 from...