Listra H type prismatic diffusion filters are characterized by the following technical parameters:
| PARAMETER | VALUE |
| Filter thickness | 4 mm |
| Dimensional tolerance | +/- 0,5 mm |
| Ground edges | |
| Hardness | 6-7 degree in Mohs scale |
| Density | 2,51 g/cm³ |
| Chemical resistance | IV hydrolytic class |
| Thermal resistance | max. 270 º C |
| Heat transmission coefficient | 6,05 W/m² x K |
| Resistance to bending | 250 MPa |
| Light transmittance | 89% |
| Uniform load strength | 150 MPa |
| Linear expansion | 9 x 10-6 |
