M.Keen doesn't think its electricity at all. I wrote and asked him to comment on this issue and he wrote back as follows:
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I don't think I could have been present when a communicator defended the
darkness on the grounds that the electricity involved in creating light inhibits
the phenomena, or transmission of information. I think it's much more subtle,
and confusing, than that. They do appear to make a distinction between AC and
DC current. My recollection is that the latter is more acceptable. At
Scole, we had one or two tape recorders running, one for recording the proceedings and the second for playing music. On occasion there was a third tape recorder for spirit transmission (e.g. at the two Ibiza sessions and in the final session when the Rachmaninoff music was recorded). So it does not appear to be electric current itself which is the main trouble, but the type of light, i.e. that part of the spectrum which for some reason conflicts with or somehow
inhibits effective transmission. That it does not invariably do so is evidenced
not only by the common use of (usually) red lamps but by reports of spirit
activities in something like broad daylight — e.g. D.D. Home's physical
performances. There was no diminution of oral transmissions at two seances I attended relatively recently when a battery of four mini video cameras was focussed on and around the medium, operating in the infra-red range.
Even with the Scole Group, my colleague Dr Hans Schaer sat in reasonably adequate artificial light provided by a clear light bulb when experiencing a psychomanteum-type experiment to obtain moving images on a video camera focussed on
a mirror which was angled to face the cellar ceiling. It was a partial
success, the results of which were later seen by David Fontana, my wife and myself, but it was this ("Alice") experiment which was subject to increasing interference, and which eventually resulted in loss of contact with the familiar spirit communicators.
