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 |  |  | Kool Light Tube
 Large diameter (6") heavy-duty glass construction. Will fit all HPS and most MH bulbs.
Chromed parabolic reflector directs light downward for horizontal applications, maximizing light use efficiency. (The external reflector can easily be removed for vertical applications and installation.) The best reflector for reduced heat build-up in the grow room—for healthier plants.
Reduced ventilation requirements mean more efficient use of CO2 applications.
Closer lamp to plant tolerance means bigger flowers, buds, and fruits.
Numerous units can be installed in a series using only one intake and one exhaust for ducting to Kool Light Tube units.
Less residual heat in the grow room after the lights shut-off.
Now made with a removeable insert and reflector. The perfect choice for the colosseum.
Now made with an adjustable mogul socket. The perfect choice for most bulbs. No BT-56 old style bulbs
Glass Length 16 inches. Total Length 19 inches

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