Introducing the new T8 LED Lamps from Arcadia, the fuss free way to upgrade your current T8 lighting to brighter and energy efficient LED. Fully compatible with current T8 controllers from Arcadia and comparable to T5 light output which we believe makes it the must have for upgrading to LED at the fraction of the price. With deep blue LED\'s to provide and actinic moonlight that is ideal for freshwater of marine systems. Why not mix with other LED lamp colours for a day and night effect. Features Include 17W is equivalent to a 36W fluorescent lamp. 72 x 0.25W LED\'s. Uses 1/3 of the electricity and produces 70% more effective light than the equivalent fluorescent lamp. Overall, 5x more light for every kilowatt hour. Adds \'ripple effect\' to an aquarium. Compatible with current Arcadia Controllers. Lamp is a twist manoeuvrable to allow a more specific lighting position.