Portable Water Purifier UV Light


Joined Jun 22, 2012
Is it a fluorescent tube with two pins on each end, if so you will need a cfl inverter board, like the ones for caravans.
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Joined Feb 5, 2010
Water purification with UV is energy intensive and requires a multi minute exposure time. A few seconds under UV will NOT sterilize drinking water.


Joined Jan 18, 2008
Also be sure whatever vessel the water is in is transparent to UV wavelengths that are germicidal. That is usually considered to be UV-C at 254 nm. Unless, of course, you are irradiating through an open top. There are a lot of factors that can interfere, such as dissolved iron salts and so forth. It is risky business on a camping trip. I would not rely on its efficiency.



Joined Sep 17, 2013
Unless the purifier is solely for a small-scale laboratory experiment I suspect you'll need a LOT more than 5.5W do have any useful effect.


Joined Feb 5, 2010
Two or three drops of regular old clorox bleach is more than sufficient to kill all living microbes in one gallon of water. It tastes like a swimming pool, but will not hurt you if consumed. It is easy to carry and a very small amount can sterilize many gallons of drinking water.


Joined Dec 13, 2013
my hot tub uses an ozonator, it pulls air through a box with a uv light which ionises the air, which is bubbled through the water in the tub. this works instead of using chlorine to disinfect the water. short wave uv.