This is a Kobold Fresnel Lens designed to fit the PAR reflector of a DW200 HMI fixture. It gathers, narrows, and intensifies the light emitted from the fixture. It has a stay-cool handle for easy installation and removal.
When mounted, it will cause the DW200 to throw a beam 37° wide of 353 fc at 5' (1.5 m), 117 fc at 10' (3 m), and 59 fc at 15' (4 m), with the fixture at full spot position.
At full flood, it will cause a beam of 75°, 152 fc at 5', 51 fc at 10' and 25 fc at 15'.