What they are both incredibly poor at is their conversion of consumed Watts into lumens of light ironic for a product designed to produce light...
Just like duct tape is good for lots of things ... except sealing ductwork [/quote]
The history is a little more twisted... Duct tape is actually a spin of of Duck tape... The original Duck tape was designed to quickly seal ammo for the Navy in WWII, it was made from duck cloth, and was water resistant like a duck so it was nicknamed Duck tape... After the war it was sold as a general purpose repair tape much like Duct tape is today, during this time as a general purpose repair tape it was used by HAVAC guys to seal ducts, and in the 1950s it was rebranded as Duct tape... Then in the 1970s it was re-branded back to it's original name Duck tape due to many people calling it that and to stand out from the other 'duct tapes' on the market...
I found a Pelonis site with PTC heaters. I ASSUME this is a much newer technology than > 20 year old Pelonis ceramic cube heater I have which still works fine and I see can STILL be purchased on Amazon?
Pelonis was one of the first companies to really push PTC space heaters, I believe all of their ceramic heaters are PTC...
But what if you just plug it in and the ambient temp is varying from -20F to above freezing?
That is when a thermostat of some kind is handy...
Hmmm, looks like that would take a bit more skill/education to use than an off the shelf plug in the wall thing like a ThermoCube. Are there "kits" to turn these into a "consumer ready" product?
It's really not that complicated, strip two wires on a wall wart (wall adapter) screw them down to the power terminals of the device... Then there will be the relay side with a few more screw down terminals, you just cut one of the wire to the device and screw it down to the relay just like installing a switch... The first one I posted has a dual relay on it so you have to pay attention to what 2 of the 3 terminals you use...