The cool tube surrounds the bulb with a hardened glass bulb which is integrated directly into the exhaust system and thus neutralizes most of the heat.
The Cooltube is usually mounted between the filter and the fan, that its only filters air that passes through the piston.
For exhaust pipes with a diameter of 125mm.

Ideal for 250W bis 600W

Socket: E40
Illumination area: ca. 120x100cm