it's hard to let go once the electicity starts running through your hands, it seems to freeze your fingers shut so it's hard to open your hand and let go.
The stelath is by marineland visitherm. They are all black with a plastic casing so you can remove them from the water warm without shattering. Albert sold me on a couple as the best heater out there. They do work well, I just think I got a faulty one.
I seem to have bad luck with heaters though, I don't think I have ever owned one that has lasted past 6 months.
These are the heaters here
http://www.marineland.com/products/a...rm_stealth.asp