{"product_id":"lumii-black-720w-led-kit","title":"LUMii BLACK 720W LED Kit – LED Grow Light with Ballast","description":"\u003ch2\u003eSix-bar LED output, set on the dial of a LUMii BLACK digital ballast\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eLUMii BLACK 720W LED Kit\u003c\/strong\u003e pairs LUMii's \u003cstrong\u003eBLACK LED 720W six-bar fixture\u003c\/strong\u003e with the \u003cstrong\u003eLUMii BLACK 600W digital ballast\u003c\/strong\u003e that powers it. There is no driver built into the frame: the ballast drives the LEDs, so its dial sets the output – \u003cstrong\u003e250W\u003c\/strong\u003e, \u003cstrong\u003e400W\u003c\/strong\u003e, \u003cstrong\u003e600W\u003c\/strong\u003e or the \u003cstrong\u003e600W Boost\u003c\/strong\u003e setting for the full \u003cstrong\u003e720W\u003c\/strong\u003e. Its six bars carry \u003cstrong\u003efull-spectrum white LEDs with added 660nm red\u003c\/strong\u003e, enough for a \u003cstrong\u003e1.2 x 1.2 m to 1.5 x 1.5 m\u003c\/strong\u003e grow tent or room. The frame measures \u003cstrong\u003e110 x 108 cm\u003c\/strong\u003e and is only \u003cstrong\u003e5 cm\u003c\/strong\u003e deep, and the ballast either bolts to the fixture with the brackets supplied or sits outside the grow space.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLUMii BLACK LED 720W six-bar fixture\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLUMii BLACK 600W digital ballast\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBallast mounting brackets\u003c\/strong\u003e for fixing the ballast to the fixture\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e720W across six bars\u003c\/strong\u003e – strong output spread over the whole canopy rather than from one hot point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour power settings\u003c\/strong\u003e on the ballast – \u003cstrong\u003e250W\u003c\/strong\u003e, \u003cstrong\u003e400W\u003c\/strong\u003e, \u003cstrong\u003e600W\u003c\/strong\u003e and \u003cstrong\u003e600W Boost (720W)\u003c\/strong\u003e – to suit seedlings, vegetative growth and flowering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull spectrum plus 660nm red\u003c\/strong\u003e – one light from propagation through vegetative growth, flowering and fruiting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBallast on the frame or remote\u003c\/strong\u003e – mount it on the fixture, or move it outside the tent to keep its heat out of the grow space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen six-bar frame, 5 cm deep\u003c\/strong\u003e – air moves freely between the bars and the light gives off very little radiant heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight\u003c\/strong\u003e – with no driver in the frame it weighs \u003cstrong\u003e7.8 kg\u003c\/strong\u003e and hangs easily on rope ratchets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP65 rated\u003c\/strong\u003e, with a \u003cstrong\u003e50,000-hour\u003c\/strong\u003e rated LED life.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHot, Uneven Light From an Old HID Lamp?\u003c\/h3\u003e\u003cp\u003eA single HPS or metal halide lamp pours its light from one point and much of its energy out as heat. The lamp has to hang high to avoid scorching the tops, so the edges of the canopy get far less light than the centre, plants stretch towards it, and the extra heat pushes up grow room temperature, humidity swings and the load on your extraction. A six-bar LED spreads its output across a 110 x 108 cm frame, so light reaches the corners of a 1.2 m tent far more evenly, the fixture can hang closer, and the room runs cooler with steadier airflow. Because the ballast can sit outside the tent, even its heat stays out of the grow space.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit the ballast\u003c\/strong\u003e to the fixture with the brackets supplied, or mount it outside the tent and connect it with an \u003cstrong\u003eIEC male-to-female extension lead\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHang the fixture level\u003c\/strong\u003e on rope ratchets so you can raise it as the plants grow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeedlings and cuttings:\u003c\/strong\u003e start on \u003cstrong\u003e250W\u003c\/strong\u003e with the light around \u003cstrong\u003e80–100 cm\u003c\/strong\u003e above the plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVegetative growth:\u003c\/strong\u003e step up to \u003cstrong\u003e400W\u003c\/strong\u003e then \u003cstrong\u003e600W\u003c\/strong\u003e, lowering the light towards \u003cstrong\u003e30–50 cm\u003c\/strong\u003e as plants establish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlowering and fruiting:\u003c\/strong\u003e start at \u003cstrong\u003e400–600W\u003c\/strong\u003e and move to \u003cstrong\u003e600W Boost (720W)\u003c\/strong\u003e soon after, at \u003cstrong\u003e30–50 cm\u003c\/strong\u003e above the canopy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatch the tops\u003c\/strong\u003e – pale, bleached or upturned leaves mean too much light: raise the fixture or turn the dial down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun it on a timer or contactor\u003c\/strong\u003e rated for the ballast – typically \u003cstrong\u003e18 hours\u003c\/strong\u003e a day in vegetative growth and \u003cstrong\u003e12 hours\u003c\/strong\u003e in flower.\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\u003ePower draw:\u003c\/strong\u003e 720W (600W Boost setting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePPF:\u003c\/strong\u003e 1,870 µmol\/s (600W Boost setting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficacy:\u003c\/strong\u003e 2.6 µmol\/J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixture size:\u003c\/strong\u003e 110 x 108 x 5 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e LUMii\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit contents:\u003c\/strong\u003e LUMii BLACK LED 720W six-bar fixture + LUMii BLACK 600W digital ballast + ballast mounting brackets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower settings:\u003c\/strong\u003e 250W \/ 400W \/ 600W \/ 600W Boost (720W), set on the ballast\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectrum:\u003c\/strong\u003e full-spectrum white with added 660nm red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e 1.2 x 1.2 m to 1.5 x 1.5 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBars:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 7.8 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngress protection:\u003c\/strong\u003e IP65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated LED life:\u003c\/strong\u003e 50,000 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBallast mounting:\u003c\/strong\u003e on the fixture (brackets supplied) or remote\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;\"\u003eCan I mount the ballast outside the tent?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. LUMii designed the ballast to fit on the fixture with the brackets supplied or to sit remotely. To run it remotely, connect the ballast to the fixture with an IEC male-to-female extension lead, which keeps the ballast's heat out of the grow space.\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 size grow space does it cover?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eOne kit covers 1.2 x 1.2 m to 1.5 x 1.5 m, so it is a natural fit for a 1.2 m tent. For a 1.2 x 2.4 m space, run two side by side.\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;\"\u003eCan I run it from a magnetic ballast?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eIt is built to run from the LUMii BLACK 600W digital ballast supplied in this kit, which provides the 250W to 720W settings. Use that ballast rather than a magnetic HPS ballast.\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;\"\u003eIs it suitable for the whole grow?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. The full-spectrum white LEDs with added 660nm red suit every stage – start seedlings and cuttings on 250W with the light high, then raise the power and lower the light through vegetative growth into flowering.\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\/light-extension-iec-cable-5-metre\" 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\/IEC-extention-cable-medium_landscape.jpg?v=1746905304\u0026amp;width=160\" alt=\"Light Extension IEC Cable – For Grow Lights and Ballasts\" 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;\"\u003eLight Extension IEC Cable – For Grow Lights and Ballasts\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eIEC male-to-female lead to run the ballast remotely\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/easy-grow-rope-ratchet-hangers\" 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\/Rope-Ratchets-2-medium_landscape.jpg?v=1746904692\u0026amp;width=160\" alt=\"Easy Grow Rope Ratchet Hangers – Heavy Duty 64kg Pair\" 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;\"\u003eEasy Grow Rope Ratchet Hangers – Heavy Duty 64kg Pair\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eHang the fixture and adjust its height\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/lumii-contactor-timer\" 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\/lumii-contactor-timer-1.jpg?v=1790229728\u0026amp;width=160\" alt=\"LUMii Contactor Timer – Grow Light Timer Switch\" 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;\"\u003eLUMii Contactor Timer – Grow Light Timer Switch\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eSwitches the ballast safely on a timer\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"LUMii","offers":[{"title":"Default Title","offer_id":53930872340746,"sku":"LGT-LUII-014-01","price":295.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/lumii-black-720w-led-kit-default-title-1.jpg?v=1792276953","url":"https:\/\/hydrocropshop.co.uk\/products\/lumii-black-720w-led-kit","provider":"Hydro Crop Shop","version":"1.0","type":"link"}