Good fit but short life
I bought a few of these for my original Gossen Luna Pro and they do the job but only last for about a month or so. I decided to look for a better solution and found this MR-9 Mercury Battery Adapter from CrisCam which allows you to use a readily available 1.5v silver oxide battery which the adapter steps down to 1.35 volts. Looks like a promising solution.
Rating: 3 stars