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Underwater light (update)
I give credit to "snooze" for this idea and it works great.
Use a mason jar as your enclosure. Drill a hole in the centre of the metal top where your wire will go through. Use a 20 Watt halogen bulb and if you wish add some coloured filter at the bottom of the jar (where the light will shine through). Silicone both sides of where the wire goes through the hole on the metal top and attach the wire to the bulb by any means (I soldered mine). Wait at least 24 hours for the silicone to dry. Before sealing the jar add some pebble rocks for weight so the jar sinks to the bottom. Seal the jar up with the top and ring. You can line the inside of the jar with aluminum foil to give the light more direction. Note: Use a DC wall adapter for power with 1 - 2 Amps output. ie: 12 volts DC with a 20 watt bulb |
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