{"product_id":"lm301h-evo-85w-quantum-board-led-grow-light-dimmable-full-spectrum","title":"LM301H EVO 85W Quantum Board LED Grow Light – Dimmable Full Spectrum","description":"\u003ch3\u003e\u003cspan\u003eFull Spectrum. Fully Dimmable. Built for Small-Space Growing.\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eGet professional-grade light in a compact footprint with the LM301H EVO 85W Quantum Board LED Grow Light. Built around premium LM301H EVO diodes on a solid aluminium heatsink, this slim 280 × 280 mm panel delivers a true full-spectrum output from seedling to harvest — without the heat, noise or running costs of traditional HPS lighting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA built-in knob dimmer puts you in complete control. Dial the intensity down for delicate seedlings and clones, then turn it up as your plants move into vegetative growth and flowering. One light, every stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eLM301H EVO Diodes\u003c\/strong\u003e — horticultural-grade LEDs chosen for high efficiency and long-term output stability\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eTrue Full Spectrum 380–780nm\u003c\/strong\u003e — 3500K white, 450nm blue, 660nm deep red, 730nm far red and 395nm UV in one balanced blend\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eKnob Dimmer Control\u003c\/strong\u003e — adjust brightness smoothly by hand, no app, no controller, no guesswork\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eSlim 14mm Aluminium Body\u003c\/strong\u003e — passive heatsink design runs completely silent with no fans to fail or clog\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eJust 85W Draw\u003c\/strong\u003e — low running costs and low heat output, so your tent stays cooler and your bills stay lower\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eUniversal 85–277V AC Input\u003c\/strong\u003e — works on mains power worldwide at 50Hz or 60Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003e50,000 Hour Rated Lifespan\u003c\/strong\u003e — years of use at a typical 12–18 hour daily cycle\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eLightweight 1kg Panel\u003c\/strong\u003e — hangs easily from any tent bar or greenhouse frame\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e✅ \u003cstrong\u003eCE \u0026amp; RoHS Certified\u003c\/strong\u003e and backed by a \u003cstrong\u003e2 year warranty\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy the LM301H EVO Spectrum Works\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eCheap grow lights flood plants with a narrow band of purple light. This panel does the opposite — it delivers a continuous, sunlight-like spectrum from 380nm through 780nm, with dedicated wavelengths where they matter most:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e3500K white\u003c\/strong\u003e — broad, balanced base light that supports photosynthesis at every stage and lets you see your plants' true colour to spot problems early\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e450nm blue\u003c\/strong\u003e — encourages compact, sturdy growth and strong root development, keeping seedlings from stretching\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e660nm deep red\u003c\/strong\u003e — the wavelength chlorophyll absorbs most efficiently, driving flowering and fruit set\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e730nm far red\u003c\/strong\u003e — supports flowering response and healthy stem development\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e395nm UV\u003c\/strong\u003e — a touch of UV to support natural plant defences and secondary metabolite production\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eCoverage \u0026amp; Placement\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAt 85W this is a compact panel, best suited to small tents, shelves, propagators and greenhouse benches:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSeedlings, clones \u0026amp; propagation:\u003c\/strong\u003e up to 60 × 60cm (2 × 2ft)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eHerbs, salad \u0026amp; leafy greens:\u003c\/strong\u003e up to 60 × 60cm (2 × 2ft)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eVegetative growth:\u003c\/strong\u003e around 50 × 50cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFlowering:\u003c\/strong\u003e around 40 × 40cm for a single panel — or run two side by side for a full 2 × 2ft flowering footprint\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eManufacturer's recommended hanging height is 0.8–1.2m above the canopy. Start higher and dimmer for young plants, then lower the panel and increase intensity as they establish. Hanging too high wastes light; hanging too close can scorch leaves.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePerfect For\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Small grow tents and cupboard grows\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Seed starting and propagation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Herbs, chillies, salad and microgreens\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Hydroponic systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Greenhouse supplementary lighting through winter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Houseplants and indoor displays in low-light rooms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Shelf and rack growing — link multiple panels for larger areas\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePower Draw:\u003c\/strong\u003e 85W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eLED Type:\u003c\/strong\u003e LM301H EVO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSpectrum:\u003c\/strong\u003e Full spectrum 380nm–780nm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWavelengths:\u003c\/strong\u003e 3500K + 450nm blue + 660nm deep red + 730nm far red + 395nm UV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eLuminous Flux:\u003c\/strong\u003e 17,000 lm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eDimming:\u003c\/strong\u003e Yes — manual knob dimmer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 85–277V AC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50Hz \/ 60Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePanel Dimensions:\u003c\/strong\u003e 280 × 280 × 14mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 1kg (1.1kg packed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBody Material:\u003c\/strong\u003e Aluminium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCooling:\u003c\/strong\u003e Passive heatsink — fanless and silent\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRated Lifespan:\u003c\/strong\u003e 50,000 hours\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to 40°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOperating Humidity:\u003c\/strong\u003e 45%–90% RH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e CE, RoHS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRecommended Hanging Height:\u003c\/strong\u003e 0.8–1.2m above canopy\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's in the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 × LM301H EVO 85W Quantum Board LED Grow Light\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 × Power cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 × Hanging kit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eGood to Know\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eIndoor use only.\u003c\/strong\u003e This panel is not waterproof — keep it dry and never expose it to rain or standing water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProtect your eyes.\u003c\/strong\u003e Don't stare directly into the LEDs while the light is running. Grow room glasses are a sensible investment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLet it breathe.\u003c\/strong\u003e Keep air moving around the panel and don't block airflow above it — good convection is what keeps a passively cooled light running efficiently.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHands off while running.\u003c\/strong\u003e Allow the panel to cool before adjusting or repositioning it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompact, silent and genuinely full spectrum — the LM301H EVO 85W Quantum Board gives small-space growers the light quality of a professional setup, in a panel that fits on a shelf.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!-- hc:guides --\u003e\n\u003ch3\u003eNot sure yet? Read the guides\u003c\/h3\u003e\n\u003cp\u003eWe wrote guides that mention this exact product, with no sales pitch and no prices — just the answer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/herb-connect.com\/blogs\/news\/how-far-above-plants-should-a-grow-light-be\"\u003eHow Far Above Plants Should a Grow Light Be?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/herb-connect.com\/blogs\/news\/what-does-it-actually-cost-to-run-a-grow-light\"\u003eWhat Does It Actually Cost to Run a Grow Light?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/herb-connect.com\/blogs\/news\/the-order-you-wish-youd-bought-things-in\"\u003eThe Order You Wish You'd Bought Things In\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- \/hc:guides --\u003e","brand":"Herb-Connect","offers":[{"title":"EU \/ 85W","offer_id":58115590193483,"sku":"200007763:201336100;200009209:200660850;249:200004075#85W","price":77.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/6255\/0859\/files\/Sd78c827d837244febfb1a86b962312755.webp?v=1786555996","url":"https:\/\/herb-connect.com\/products\/lm301h-evo-85w-quantum-board-led-grow-light-dimmable-full-spectrum","provider":"Herb-Connect","version":"1.0","type":"link"}