Well the reason I ask about UV is I'll be off grid so I'm not going to worry about the power issue. What I want to know is If anyone used it and did they die.............I mean how did it work for them. I'm seeing an annual bulb change, scheduled maint. and cleaning so far. The unit needs to be close to where you are going to be using your water (like the house), recommend using a filter in conjunction with as well. Seems pretty simple to hook up and maintain overall not matter which one you get.