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This is one of the original three basic rules of cave diving. It most likely evolved from the notorious unreliability of early primary and secondary lighting. Mostly hand made, one of a kind, experimental type stuff or simply not much being readily available at the time. However, it has stood the test of time, and in my opinion has even been strengthened by what I consider to be the optimum placement of clipped to the chest rings and innertubed to the lower shoulder straps. This is balanced,consistent, and allows access to a light by either the right or left hand. Of course, the choice of light comes into play here also. Relatively small in diameter and not much more than half a foot long or so. Short, fat, squatty lights don't work here. Thats why you'll see people clip them to tanks, belts etc. If they only tried this configuration with the right lights one time, they'd never go back to any other way. I don't think two small lights in the right place would be considered overkill, especially if you've ever had to exit without a primary. The argument could be made........" you can see with one eye, isn't two overkill " ;-) I'd rather have two myself. The loss of sight or visibility is the first domino, and it's a big one. Dell Motes Dive Rite 117 W.Washington St. Lake City, Florida 32055 www.dive-rite.com -----Original Message----- From: tgunther@co*.co* <tgunther@co*.co*> To: techdiver@aquanaut.com <techdiver@aquanaut.com> Date: Tuesday, October 19, 1999 1:32 PM Subject: BACK UP LIGHTS >All: > >Why two backup lights and not one? Between these and the canister that makes >three. Isn't three a bit of an overkill? > >Thanks, >Tod > >p.s. I searched the Archives and could not find an answer to this. > > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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