fully sealed clear glass tube with a lamp mounting bracket in its centre. It's perfect for removing the excess heat generated by HID grow lights without leaking unpleasan...
Wide Spread 6″ Cool Tube
The Coolshade Reflector.
The Coolshade is an air-tight, fully sealed clear glass tube with a lamp mounting bracket in its centre. It's perfect for removing the excess heat generated by HID grow lights without leaking unpleasant odours; as far as we know it's the only fully sealed system on the market (other manufacturers claims that theirs are but in our experience they are definitely not).