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| PartNumber | OP520 | OP520002 | OP521 |
| Description | LED Lighting Lenses 20MM F'FORM SERIES OPTC 5X20 | PHOTOTRANSISTOR NPN CLEAR 1206 | |
| Manufacturer | Dialight | - | - |
| Product Category | LED Lighting Lenses | - | - |
| RoHS | Y | - | - |
| Product Type | LED Lenses | - | - |
| Type | Lens | - | - |
| For Use With | Luxeon I | - | - |
| Diameter | 19.7 mm | - | - |
| Viewing Angle | 10 deg, 40 deg | - | - |
| Packaging | Tray | - | - |
| Color | Clear | - | - |
| Height | 12.5 mm | - | - |
| Length | 19.7 mm | - | - |
| Termination Style | Snap In | - | - |
| Width | 19.7 mm | - | - |
| Brand | Dialight | - | - |
| Shape | Round | - | - |
| Factory Pack Quantity | 1824 | - | - |
| Subcategory | LED Lighting | - | - |
| Tradename | Lumileds Luxeon | - | - |