Perfecto's Perfect-A-Strip Fluorescent Strip Light is a universal fit to fulfill your fresh or saltwater aquarium's lighting needs. The durable, injection-molded fixture features interior reflectors for maximum light output. Universal strip light for all brands of aquariums. Excellent for either fresh or saltwater aquariums. Shock proof vented for heat dissipation. T8 Daylight bulb(s) included. Instant-start feature allows the use of timers as needed. NOTE Must be used with a glass or acrylic top.