Cooltube Air-Cooled HID Reflector Size:125mm x 460mm Line 3 : 6500 K

Line 3 : 6500 K PE [350-1000] Laboratory* : 44 μmol/s

like all Advanced Nutrients ingredients

plants can develop white powdery spots and clumps on their leaves or stems which just seem to spread uncontrollably

only a few centimetres of feed solution is used in the pots and the excess is pumped away within ten or fifteen minutes

so works in all countries for electrical compatibility

Cooltube Air-Cooled HID Reflector Size:125mm x 460mm Line 3 : 6500 KThe original Cooltube 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. Air is usually pulled (but can be pushed) over the lamp by adding an extractor fan to one side of the tube, the hot vented air is then expelled away from the growroom and plants. They're very effective, somewhere in the region of 70 80%