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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only
Angled view of the Mars Hydro SP 3000 LED Grow Light, showing its sleek, rectangular bar-style design with the brand name on the side and dual LED panels illuminated.

Mars Hydro SP 3000 Full Spectrum 300W LED Grow Light

by Mars Hydro
$229.99 - $229.99
$229.99
$229.99 - $229.99
$229.99

🌿 Free shipping on U.S. orders $175+, unless noted above

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SAVE BIG! Contact us for Bulk Pricing and Rebate Eligibility, or call us at (973) 206-7590.

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Full Manufacturer’s Warranty

You buy it, we back it! Your purchase is fully covered with a manufacturer’s warranty. More details here.

Mars Hydro SP 3000 delivers 300W of intense full-spectrum light with deep red for flowering, waterproof build, and RJ11-linked dimming for 2x4 ft indoor grow spaces

300W LED grow light with high red spectrum, waterproof build, and silent cooling for 2x4 ft high-PPFD grow setups

Penetration power meets precise control—the Mars Hydro SP 3000 is built for growers who need deep canopy reach and a boosted red spectrum to drive explosive flower and fruit production. This 300W full-spectrum LED floods a 2x4 ft area with intense, uniform PPFD that maximizes photosynthesis across all growth stages.

Running high-humidity rooms or stacked vertical setups? No problem. The SP 3000’s waterproof build and passive cooling keep it running cool and quiet, with zero moving parts to fail. Dimming is easy—manually or across up to 50 linked units with commercial RJ11 controls. Whether you’re dialing in a tent grow or syncing a full room, this light performs.

Is the Mars Hydro SP 3000 Energy-Efficient?

Yes. With a PPE of 2.8–3.0 µmol/J (based on chipset class), this light far exceeds HPS fixtures (1.3–2.1 µmol/J). That means better yields per watt and lower power bills. Get full-spectrum power and premium red without wasting energy—or money.

Features

  • High-Intensity Penetration delivers powerful, focused light designed for deep canopy penetration—ideal for 2x4 ft grow spaces and high PPFD cultivation that demands full-cycle plant development and flowering performance.
  • Optimized Full Spectrum Output features an enhanced red spectrum combined with balanced blue and white wavelengths, supporting vigorous photosynthesis, lush vegetative growth, and prolific flowering.
  • Advanced Passive Cooling uses a thick aluminum heat sink and densely packed diodes to disperse heat quickly and quietly—operating with 30% faster cooling and zero noise, extending lifespan and maintaining consistent output.
  • Superior Waterproof Design includes a fully sealed, durable lampshade, ensuring long-term reliability in high-humidity environments such as greenhouses and tent setups.
  • Dimmable & Expandable integrates dimming controls for precise light intensity adjustment across plant stages. Commercial growers can control up to 50 lights simultaneously via RJ11 daisy-chaining for streamlined operation.
  • Energy-Efficient Output draws only 300W while delivering premium light coverage with reduced power consumption, maximizing return on investment while enhancing overall crop quality.

What's Included?

  • 1x RJ11 Cord (For dimming connection)
  • 1x Hanging Kits (Mounting brackets)
  • 1x Rope Ratchet (Height-adjustable support)

Specifications

SKU: SP-3000-NEW

Wattage: 300W ±5% @ AC100V-277V

Max Coverage: 2' x 4'

PPE: 2.8 μmol/j

PPF: 727.2 μmol/s

Chip Brand: BridgeLux

Spectrum: 650-665nm, 2800-3000K, 4800-5000K

Max Yield: 2.5 g/W

Voltage: AC100-277V

Amps: 2.499A @ AC120V | 1.241A @ AC240V | 1.094A @ AC277V

Certificate: ETL, CE, UKCA, RoHS, IP65

Lifespan: 50,000 hours

Warranty: 5 years

Dimensions: 42.79" × 3.97" × 3.98"

PPFD

SPECTRUM

Grow Light Central expert advice for indoor growing equipment

Who Should Use This Grow Light

  • Experienced home growers aiming for top-shelf yields in a 2x4 ft space
  • Commercial micro-growers needing reliable, high-PPFD light
  • Flower-focused cultivators seeking deeper canopy penetration
  • Humidity-prone environment users needing waterproof gear
  • Low-noise growers valuing silent operation and longevity

Best Applications

  • 2x4 flowering tents or vertical rack tiers
  • Cannabis strains with dense canopy and high light demands
  • Fruit and flower-heavy crops needing enhanced red spectrum
  • Smart expansion setups with multi-light dimming via RJ11
  • Quiet, heat-efficient grow spaces where passive cooling is key

Why Shop with Grow Light Central?

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

Grow Light Central is a grow equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best grow facilities across the country.

Anthony, the owner and operator, personally ensures every order is handled right. No passing you off, no runaround, just the expert service and advice you deserve.

FAQs

How many watts do I need for my grow space?

The wattage depends on the size of your grow tent or room. A general guideline is 30-50 watts per square foot for high-light plants like cannabis. For example, a 2x2 ft area may need 100-200W, while a 4x4 ft area may require 400-600W for optimal coverage.

What is the difference between full-spectrum and red/blue LED grow lights?

Full-spectrum LED lights mimic natural sunlight, providing a balanced mix of blue (for vegetative growth) and red (for flowering and fruiting) light. Red/blue LED lights focus on specific wavelengths but may not support plants as effectively as full-spectrum lights.