| Length | Capacity | for Item-No. | Item-No. |
| 390 mm | 460 Watt | 50M10, 50M11, 50M13, 50M15, 51M10, 51M13, 51M15 | 50M17/3946 |
| 490 mm | 460 Watt | 50M13, 50M14, 50M15, 51M13, 51M14, 51M15 | 50M17/4946 |
| 490 mm | 600 Watt | 50M12, 51M12 | 50M17/4960 |
| 490 mm | 825 Watt | 50M12, 51M12 | 50M17/4982 |