ENJOY ROYAL ENGERY SAVING DIGITAL AQUARIUM HEATER
Positive Temperature Coefficient (PTC) technology essentially means the heating element uses solid-state ceramic chips to...
Positive Temperature Coefficient (PTC) technology essentially means the heating element uses solid-state ceramic chips to produce heat as opposed to resistance wires like traditional heaters.
These ceramic chips are programmed to only reach a particular predetermined temperature, reducing the risk of overheating