Ｐｅｎ Ｃｒｙｓｔａｌ Ｂｕｌｂ
Note:
| Serial No. | Rating Voltage | Rating Current | Rating Power | Rating Resistance |
| Hg18-0001 | 1.1 V | 0.3A | 0.33W | C-6 |
| Hg18-0002 | 1.2V | 0.2A | 0.24W | C-6 |
| Hg18-0003 | 2.2 V | 0.18A | 0.4W | C-6 |
| Hg18-0004 | 2.2V | 0.25 A | 0.55W | C-6 |
| Hg16-0005 | 2.3 V | 0.27A | 0.62W | C-6 |
| Hg18-0006 | 2.5V | 0. 2A | 0.5W | C-6 |
| Hg18-0007 | 2.5V | 0.3A | 0.75W | C-6 |