Turtle

Turtle

Developed in response to the requirement for an efficient photoperiod light for tanks, ponds and raceways, Turtle is an entirely self-contained floating unit, housing a highly efficient metal halide discharge lamp together with associated control gear. In keeping with standard BGB practice, the starter is safely enclosed within the unit, avoiding the hazard presented by systems which transmit high voltage ignition pulses, via inadequate cable and connectors, from a cage side mounted control pack to the underwater lamp. Turtle’s design makes use of the critical angle optical principle to minimize light escape, by using the water surface as a mirror .

Description

(see Turtle PDF) The position of the discharge lamp, relative to the water surface, ensures that light cannot pass directly through the surface, conferring the added benefit of easy stock observation.

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