Key Features Suitable for biOrb Classic 15L (small) Classic LED light units Plugs directly into a biOrb 12V DC transformer (sold separately) Classic LED offers 15 year or 50,000 hour life when used for 8 hours daily Please note: these lighting units ONLY work with the biOrb Power Supply 12V DC Replacement Spare Part 73114. They will NOT work with the older biOrb transformer Oase biOrb supply a range of replacement DC Classic LED lights for the biOrb aquariums, giving you more choice in the way to customise your set up Please note these newer lights only work with biOrb DC transformers (73114). These lights will NOT work with older AC transformers (transformer not included with this product). Please see below in the specifications to check which Oase biOrb tanks are compatible with these DC MCR & Classic Lights. Classic: A simple replacement for your Classic biOrb LED Light. A high quality replacement long life LED light for your biOrb Classic and Tube Aquariums. The LED light has a