Pre-Order Euroquatics E5 Retrofit T5 LED Lamps Your T5 will never be a T5 again! The E5 is designed to work in sync with your original T5HO fixtures. These unique products showcase features that create an eco-friendly, longer lasting aquarium lamp. This new spin on an old design makes T5s a product of the past. With its sleek design, the E5 is made to last over five times the life span of an average T5HO lamp while consuming about half of the power. Warm Daylight - $49.99 to $79.99 Daylight - $49.99 to $79.99 Cool Daylight - $49.99 to $79.99 Blue Pop - $49.99 to $79.99 Marine Pink Coming Soon!