Ｄｏｕｂｌｅ－ｐｅａｒｌ Ｒｉｃｅ－ｓｉｚｅｄ Ｂｕｌｂ1
Note:
| Serial No. | Rating Voltage | Rating Current | Rating Power | Rating Resistance |
| Hg27-0001 | 2.5V | 0.1A | 0.25W | C-2R |
| Hg27-0002 | 3V | 0.1A | 0.3W | C-2R |
| Hg27-0003 | 6 V | 0.05A | 0.3W | C-2R |
| Hg27-0004 | 9 V | 0.05A | 0.45W | C-2V |
| Hg27-0005 | 12V | 0.05A | 0.6W | C-2V |
| Hg27-0006 | 14V | 0.05A | 0.7W | C-2V |
| Hg27-0007 | 24V | 0.05A | 1.2W | C-2F |