With the PK Cooltube you are able to directly extract the heat generated by the Lamp. Recommended to maintain the temperature of your grow-space more stable, yet able to reduce the distance between lamp and plants.
The PK Cooltube reflector has a small reflector inside the glass tube and two exterior side reflectors providing a unipourm light distribution.
Measures: diameter 120 mm, 400 mm long.
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