This is a Red in poloarizer for EPSON Powerlite L610W use only.
it is outside the LCD unit. If your old one burned, then need exchange.
install it on it your old housing by use 704 glue or uv glue (you can ask me the 704 or uv glue pictures if you don't know which one to buy)
If you need other EPSON polarizers, please feel free to ask.