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Mike Borello wrote:

> Regarding the magnetic reed switch, make sure that the switch is rated
for
> the current it will be handling.  I designed an underwater light for
US
> Divers years ago and soon found out that if the switch is not rated
for the
> current, it will latch - you cannot turn off the light without
disconnecting
> the battery.  Also, a mercury wetted magnetic reed switch will help
prevent
> latching.

It is clear that you cannot use the magnetic switch as a power switch.
If the magnetic switches are used, they must be used ONLY as a auxillary
trigger switches to feed power to the bigger relay that will handle the
power line. They are not designed to handle big power. I have one lamp
operating like this, but I have two magnetic swithes so that they both
can switch the lamp on or off. Therefore, if one fails, the other saves
your day. Do not relay on one switch only !

Terho

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