kelvin

Hello! Marine lights are generally rather pricey. Anyone ever considered light therapy lights? They seem close to the right brightness and color temperature? Any opinions? TIA!

How many of us truly understand the importance of these measurements within lighting and our reef tanks? I produced a video 'hoping' to help those who dont quite understand it! - Hope you enjoy it :)

Anyone out there lighting there zoa's by the kelvin, like 14K or 20K using leds. I have some AI Hydras, first gen I believe with the seven different leds, and got two sitting about 12inches above a 40G breeder. Have them set to the levels below which is supposed to be 14K. UV 40% V 40% DB...