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PhotonWrangler said:
I would be worried about corrosion of the batteries from the constant presence of humidity from the water, but then I don't know anything about the construction of the unit.
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Lynx_Arc said:
I would be concerned about how well sealed the top is as you could get the nicad batteries wet and have that seep into your water jug, I don't know if cadmium poisoning is possible but that could perhaps be a concern.
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It looks like others have shared your concerns about battery/water interaction - their marketing materials emphasize that they are completely separate...
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The solar power unit is totally sealed; in fact, it is molded in from the top (outside) of the cap so there's no possible contact with the contents of the bottle. There's also a handy waterproof switch on the cap that lets you change from the white bulb (bright), to red (preserves your night vision), or turn it off completely. You can leave the red light on all night (minimal energy draw) so you can easily find the bottle; then switch it to white if you need a light!
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As strange a product as this is, I have been entranced by the potential lovely lighting effect for my camping trips this summer - I just ordered on of the dang things. I'm hoping/imagining it'll draw the forest babes like moths...
/ubbthreads/images/graemlins/au.gif
(Check out the
photos of this thingamajig in action...)