 US-UK STANDARDS (System of Imperial Units) |
 EUROPEAN STANDARDS (International System of Units) |
|
|---|---|---|
| DIMENSION (+/-2%) | 20 inch X 20 inch | 50 cm x 50 cm |
| COVERAGE AREA | 2,70 ft2/panel | 0,25 m2/panel |
| PANEL THICKNESS / PATTERN DEPTH | 1,1 inch / 0,16 inch | 27 mm / 4 mm |