heaters differences

What are the differences between the Marineland® Visi-Therm® Stealth Submersible Aquarium Heaters and the Visi-Therm® Deluxe Aquarium Heaters?

Also, is Penn Plax Submersible Heater any good?

Thanks!
GKW

 

Per Marineland's website

The Deluxe:
Click-Set Temp Select Dial
Fully adjustable for superior accuracy.
Double-Sealed Safety
Waterproof double insulation and double strength glass component housing.
Lifetime Performance Warranty
Certified safety and reliability.

The Stealth:
Easy-Set Temp Select
Dial Ensures accuracy to within 1° F.
Shatterproof Thermal Plastic Casing
Protects components against UV's, thermal/mechanical shock.
Stop-Restart Overheat Protection
Shuts heater down automatically if left out of water.
Aluminum Core Cylinder and 8-Cavity Heating Element
Distribute core heat evenly, efficiently.
Shock Absorber
Safely secures the heating element.

Never used Penn Plax, no opinion

 

thanks Michael!

also, anyone else used Tetra Acura heater? it's like 13 bux for 300 watts.

and the Marineland Stealth for 22 bux for 250 watts.

Thanks!