Marineland - LED Aquarium Light. The versatile LED aquarium light is designed for use on glass canopies. This is a great item to upgrade to LED technology. For use with aquariums up to 30 inch long. Use more than one for larger aquariums. 42 White LED's, natural shimmering light mimics the underwater effect of sunlight. 3 Blue LED's for night light effect. Energy efficient power consumption is only 3. 8 watts. Each comes with 4 rubber bumpers to minimize slippage on the canopy. Packaging can be pegged or it can stand upright on a shelf.