EFM Projector Light Bulbs

EFM projector light bulbs are used in many types of overhead projectors including brands like GE, Sylvania, Apollo, 3M or many others too numerous to mention. The 50 watt, 8 volt rating are specifically designed for certain types of equipment. They have a high light output and are designated by a three letter code EFM which you should see on the back of the lamp itself or inside the projector. Sometimes people are confused by code numbers from manufacturers but the only thing you really need to identify any projector lamp is the three letter code which in this case is an EFM projector lamp.

- 50 watts.
- 8 volt.
- 50 hour rated life.