LM301H EVO 85W Quantum Board LED Grow Light – Dimmable Full Spectrum

Full Spectrum. Fully Dimmable. Built for Small-Space Growing.

Get 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.

A 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.

Key Features

✅ LM301H EVO Diodes — horticultural-grade LEDs chosen for high efficiency and long-term output stability

✅ True Full Spectrum 380–780nm — 3500K white, 450nm blue, 660nm deep red, 730nm far red and 395nm UV in one balanced blend

✅ Knob Dimmer Control — adjust brightness smoothly by hand, no app, no controller, no guesswork

✅ Slim 14mm Aluminium Body — passive heatsink design runs completely silent with no fans to fail or clog

✅ Just 85W Draw — low running costs and low heat output, so your tent stays cooler and your bills stay lower

✅ Universal 85–277V AC Input — works on mains power worldwide at 50Hz or 60Hz

✅ 50,000 Hour Rated Lifespan — years of use at a typical 12–18 hour daily cycle

✅ Lightweight 1kg Panel — hangs easily from any tent bar or greenhouse frame

✅ CE & RoHS Certified and backed by a 2 year warranty

Why the LM301H EVO Spectrum Works

Cheap 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:

• 3500K white — broad, balanced base light that supports photosynthesis at every stage and lets you see your plants' true colour to spot problems early
• 450nm blue — encourages compact, sturdy growth and strong root development, keeping seedlings from stretching
• 660nm deep red — the wavelength chlorophyll absorbs most efficiently, driving flowering and fruit set
• 730nm far red — supports flowering response and healthy stem development
• 395nm UV — a touch of UV to support natural plant defences and secondary metabolite production

Coverage & Placement

At 85W this is a compact panel, best suited to small tents, shelves, propagators and greenhouse benches:

• Seedlings, clones & propagation: up to 60 × 60cm (2 × 2ft)
• Herbs, salad & leafy greens: up to 60 × 60cm (2 × 2ft)
• Vegetative growth: around 50 × 50cm
• Flowering: around 40 × 40cm for a single panel — or run two side by side for a full 2 × 2ft flowering footprint

Manufacturer'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.

Perfect For

• Small grow tents and cupboard grows

• Seed starting and propagation

• Herbs, chillies, salad and microgreens

• Hydroponic systems

• Greenhouse supplementary lighting through winter

• Houseplants and indoor displays in low-light rooms

• Shelf and rack growing — link multiple panels for larger areas

Specifications

• Power Draw: 85W
• LED Type: LM301H EVO
• Spectrum: Full spectrum 380nm–780nm
• Wavelengths: 3500K + 450nm blue + 660nm deep red + 730nm far red + 395nm UV
• Luminous Flux: 17,000 lm
• Dimming: Yes — manual knob dimmer
• Input Voltage: 85–277V AC
• Frequency: 50Hz / 60Hz
• Panel Dimensions: 280 × 280 × 14mm
• Net Weight: 1kg (1.1kg packed)
• Body Material: Aluminium
• Cooling: Passive heatsink — fanless and silent
• Rated Lifespan: 50,000 hours
• Operating Temperature: -20°C to 40°C
• Operating Humidity: 45%–90% RH
• Certification: CE, RoHS
• Warranty: 2 years
• Recommended Hanging Height: 0.8–1.2m above canopy

What's in the Box

• 1 × LM301H EVO 85W Quantum Board LED Grow Light
• 1 × Power cable
• 1 × Hanging kit

Good to Know

Indoor use only. This panel is not waterproof — keep it dry and never expose it to rain or standing water.

Protect your eyes. Don't stare directly into the LEDs while the light is running. Grow room glasses are a sensible investment.

Let it breathe. Keep air moving around the panel and don't block airflow above it — good convection is what keeps a passively cooled light running efficiently.

Hands off while running. Allow the panel to cool before adjusting or repositioning it.

Compact, 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.

Not sure yet? Read the guides

We wrote guides that mention this exact product, with no sales pitch and no prices — just the answer.

• How Far Above Plants Should a Grow Light Be?
• What Does It Actually Cost to Run a Grow Light?
• The Order You Wish You'd Bought Things In

Orders are processed within 3 days, then 7–14 business days to arrive. You'll receive tracking as soon as your parcel ships.

Changed your mind? Return unopened items within 30 days for a full refund.