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Featuring 660nm RED LED's to promote chlorophylls photosynthesis
The Stingray 3
The Titanium Advantage
you may need a replacement IR board
Finnex Digital Aquarium Controller HC-820M Series Finnex Power Supply Featuring 660nm RED LED's toThe HC 820M controller uses an advanced digital processor that monitors and controls the water temperature in your aquarium. The heating controller receives temperature data from the remote sensor in the aquarium. The remote sensor contains no bi metallic contacts to arc, corrode or wear out. This allows the HC 820M to have precise control, keeping the water temperature stable while avoiding wide temperature swings common with low quality aquarium
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