Maxwell,
I am an avid caver and over the years I have progressed through the various ranges of mining lamps from oldham to Oldham conversions using ex military wet nicad cells.
I have been one of the last in my caving club to convert over to the Speliotronics FX iron head mounted LED/halogen combination. It is basically the same mining lamp headshell, but with a 14 led reflector for "close" work and a conventional halogen spot for "distance."
It has a box which mounts on the rear of the helmet, freeing the caver from trailing cables to get "snagged" in tight places !
The problem as I see it with the sorts of lamps in your header is that they are really not up to the rigors of "serious" caving, which is reflected in the price. I paid £140 plus for my FX iron!
Reliability is also an issue. Underground is one place you cannot rely on a "cheaper" type of lamp.
Having aaid that, I have an emergency light strapped to the side of my helmet which is a 28 led small torch I got for £2 off Ebay, and it is ideal as a secondary emergency lamp. It runs off three AAA bateries and gives quite an impressive light output.
I have to say that caving on LEDs gives a pleasant spread of light which seems a much more "natural" light source. The only drawback is that in large passages, you do need the spot beam of the halogen lamp to see any distance!
Posted: 29/07/2005 at 19:31