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Twin arc tube metal halide bulb-TWO BULBS IN ONE!! Please note: Only one arc fires at a time (not both). When the ballast turns off, and back on, it'll automatically switch to the other arc, and so on.
A perfect match for our pro metal halide pendant and digital electronic ballast.
Promote amazing growth and color in your corals.
Maintains higher light output levels than conventional metal halide bulbs.
Automatic switching, no additional ballast required!
Can significantly reduce light shock in corals when changing bulbs.
No wiring required, simply screw in the twin arc tube lamp into any mogul based metal halide system.
Requires pulse start ballast for proper operation.
These bulbs are slightly longer than standard mogul base metal halide lamps and may not fit some fixtures.