| Manufacturer | Part Number | Description |
|---|---|---|
| CdS | GL5539 | (GL5516 - GL5549) Photoresistor |
| SENBA | GL5539 | (GL5516 - GL5549) Photoresistor |
| Unknown Manufacturer | GL5539 | (GL5516 - GL5659D) PHOTO CONDUCTIVE CELL |
| Unknown Manufacturer | GL5539 | GL5516 - GL5549 Photoresistor |
