Marco / Mentor Potential Acuity Meter (PAM) bulb fits the following ophthalmic instruments:
Mentor/Marco 22-4300 Potential Acuity Meter
Mentor/Marco 22-4305 Potential Acuity Meter
Mentor/Marco 22-4310 Potential Acuity Meter
Mentor/Marco 22-4315 Potential Acuity Meter
Mentor/Marco 22-4320 Potential Acuity Meter
Mentor/Marco 22-4321 Potential Acuity Meter
The Marco factory bulb part number for the PAM instrument is PAM-1010.