Cooltube Air-Cooled HID Reflector Size:125mm x 460mm so works in all countries

so works in all countries for electrical compatibility

For use during growing phase and the first 1-3 weeks of the flowering phase

Range of sizes and air flow

flush the reservoir and reintroduce nutrients at reduced doses

If you are following the Green Planet schedule

Cooltube Air-Cooled HID Reflector Size:125mm x 460mm so works in all countriesThe 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%