{"product_id":"garden-highpro-protube-cool-tube","title":"Garden HighPro ProTube Cool Tube – Air Cooled Reflector","description":"\u003ch2\u003eA Slim Cool Tube That Sends Lamp Heat Down the Duct\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGarden HighPro ProTube\u003c\/strong\u003e is a \u003cstrong\u003ecool tube air-cooled reflector\u003c\/strong\u003e for single-ended HPS and Metal Halide lamps. The lamp sits inside a \u003cstrong\u003eheat-resistant borosilicate glass tube\u003c\/strong\u003e with a duct collar at each end, so the extractor fan draws air straight through the tube and carries lamp heat away before it builds up around the plants. A \u003cstrong\u003edimpled aluminium reflector\u003c\/strong\u003e over the tube throws the light down across the canopy. Choose the \u003cstrong\u003e125mm (5\")\u003c\/strong\u003e tube in \u003cstrong\u003e300mm\u003c\/strong\u003e or \u003cstrong\u003e400mm\u003c\/strong\u003e length, or the \u003cstrong\u003e150mm (6\")\u003c\/strong\u003e tube at \u003cstrong\u003e400mm\u003c\/strong\u003e, to match your ducting and fan.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-cooled lamp\u003c\/strong\u003e – heat goes out through the ducting instead of into the grow tent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHang the light closer\u003c\/strong\u003e – a cooler lamp can sit nearer the canopy without scorching the top growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorosilicate glass tube\u003c\/strong\u003e – heat-resistant and clear, sealed by the duct collars at each end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimpled aluminium reflector\u003c\/strong\u003e – spreads light evenly down onto the plants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect duct fit\u003c\/strong\u003e – \u003cstrong\u003e125mm\u003c\/strong\u003e or \u003cstrong\u003e150mm\u003c\/strong\u003e collars push straight into standard ducting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard E40 lamp holder\u003c\/strong\u003e – takes the usual single-ended HPS and MH grow lamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIs Lamp Heat Cooking Your Grow Tent?\u003c\/h3\u003e\u003cp\u003eAn HPS or MH lamp turns a large share of its power into heat. In a small tent that heat pushes the \u003cstrong\u003etemperature\u003c\/strong\u003e up, dries the air and forces the light higher, so less of it reaches the plants. A cool tube puts the lamp inside the \u003cstrong\u003eairflow\u003c\/strong\u003e path of your extraction: the fan pulls air through the glass and out of the room, taking most of the lamp heat with it, which keeps the canopy cooler and lets you hang the light lower for stronger, more even growth.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit the lamp\u003c\/strong\u003e – open one end of the tube and fit an E40 HPS or MH lamp that fits inside the tube length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect the ducting\u003c\/strong\u003e to both collars and seal each joint with a ducting clip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePut it in the extraction line\u003c\/strong\u003e – the fan draws air through the tube, either from the tent or from outside it, and exhausts it from the room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHang level\u003c\/strong\u003e above the canopy and connect the lamp lead to a ballast of the matching wattage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep the glass clean\u003c\/strong\u003e – wipe it between runs so dust does not cut light output\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes (duct x tube length):\u003c\/strong\u003e 125mm (5\") x 300mm · 125mm (5\") x 400mm · 150mm (6\") x 400mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Cool tube, air-cooled reflector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube:\u003c\/strong\u003e Borosilicate glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReflector:\u003c\/strong\u003e Dimpled aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLamp holder:\u003c\/strong\u003e E40, single-ended HPS or MH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLamp wattage:\u003c\/strong\u003e Up to 600W – check the lamp's length against the tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct connection:\u003c\/strong\u003e 125mm or 150mm collar at each end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLamp and ballast:\u003c\/strong\u003e Not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eShould I choose 5 inch or 6 inch?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eMatch the tube to the ducting and fan you already run. The 6\" (150mm) tube passes more air for more cooling; the 5\" (125mm) suits smaller tents and 5\" extraction lines.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhat is the difference between the two 5 inch tubes?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eOnly the length: 300mm or 400mm. The longer tube leaves more room around a long lamp and spreads the light along a slightly longer footprint.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eDoes it come with a lamp or ballast?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNo. It takes an E40 single-ended HPS or MH lamp and needs a ballast of the matching wattage, both sold separately.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/aluminium-ducting\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/ducting-aluminium-ducting-29227387355320.webp?v=1773488132\u0026amp;width=160\" alt=\"Aluminium Ducting\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eAluminium Ducting\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003e5\" and 6\" duct for both collars\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/jubilee-ducting-clip-adjustable-1-15-30mm-315mm\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/jubilee-ducting-clip-2-medium_landscape.jpg?v=1746904935\u0026amp;width=160\" alt=\"Jubilee Ducting Clip\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eJubilee Ducting Clip\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eSeals the duct onto each collar\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/omega-black-600w-ballast\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/600w_Omega_Black.webp?v=1752063953\u0026amp;width=160\" alt=\"Omega Black 600W Ballast\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eOmega Black 600W Ballast\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eDims to 250, 400 or 600W to suit your lamp\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Garden HighPro","offers":[{"title":"125mm (5\") x 300mm","offer_id":53930841866506,"sku":"LGT-GARD-003-01","price":31.95,"currency_code":"GBP","in_stock":true},{"title":"125mm (5\") x 400mm","offer_id":53930841899274,"sku":"LGT-GARD-003-02","price":34.9,"currency_code":"GBP","in_stock":true},{"title":"150mm (6\") x 400mm","offer_id":53930841932042,"sku":"LGT-COOL-001-01","price":40.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/garden-highpro-protube-cool-tube-125mm-5-x-300mm-1.jpg?v=1792275226","url":"https:\/\/hydrocropshop.co.uk\/products\/garden-highpro-protube-cool-tube","provider":"Hydro Crop Shop","version":"1.0","type":"link"}