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Mars Hydro Mars II 400

  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400
  • Mars Hydro Mars II 400


    We ship worldwide! Contact us for a quote.

   In Stock         Discrete Shipping
    Need several units? Inquire for a volume quote.

  Mars products* are now shipping to CA, UK, EU, and AU!
    Select your country. *Mars Pro series ships from China.

4x Buyer Protection

4x Buyer Protection

   No returns | 2-year warranty
   Authorized dealer of this product


The Mars II 400 is designed to significantly reduce your costs of growing while ensuring maximum growth from your harvests. Perfect for large scale commercial operations or your indoor garden. Grow your favorite plants all year long.

With a record-breaking 2.5' x 2.5' coverage, the Mars 400 can easily replace a 250 watt HPS traditional grow light, produce a superior yield, and higher-quality flowers - all while reducing operational cost by 1/3!


MARS II 400 Features

Grow and Bloom modes: Two on-board switches to control the mode of growth

Powerful: Next Generation Epistar™ High Intensity LED’s

Optics Technology: 5 watt single chip (TOP-BIN) LED with lens

Plug & Play Device: No need to purchase additional equipment to operate the unit

Maximum Coverage: Covers a full 2.5' x 2.5' to easily replace a 250 watt HPS

Mars Hydro Product Brochure and Specs


*Warehouses in the US, Canada, UK, Germany, and Australia; other countries please inquire for a quote




Model/SKU: Mars II 400/marsII400

Power output: ~190 watts

HID equivalent: 250 watts

LEDs: 80 x 5 watt single-chip Epistar Hi-Intensity LEDs; 50,000 hour lifespan (10+ years if LED lights are on 57% of the time)

Spectrum: 440nm, 460nm, 630nm, 660nm, 730nm (IR), 2400K-3000K

Lens angle: 90° - 120°

Coverage area: 6.25 sq ft (30" x 30")

Thermal management: Aluminum heat sinks; Cooling fans

Daisy chain: No

Dimensions: 11.5 " x 11.5" x 4"

Operating temperature: 85°F -105°F

Operating/input voltage: 85v-265v; Amperage: 1.6 @ 110v | 0.8 @ 220v

Product weight: 13 lbs

Recommended height above plants: 24" - 30"

Additional details: BTUs: 638; 58 decibels; Plug Type: EU, UK, AU, USA, Japan; Plug-and-Play

Product includes: Power cord, Hangers

Recommended for: Indoor grow operations; Hydroponic, aeroponic, or aquaponic systems

Manufacturer's Warranty: 2 years

Customer Reviews

Based on 4 reviews
Robert Grossman R.G. Robert G.
Great Product, Competent Vendor

Product works as described, quick shipment a bonus

Shaun Murphy S.M. Shaun M.
Very satisfied so far.

First grow with the Mars II 400 and I am delighted. My crops are three weeks from seedling and are growing like weeds. I have heard older reviews from other vendors that Mars Hydro can have LEDs die prematurely, and I have only used the light for three weeks, but it seems like a quality product to me.

Brandon Casilio B.C. Brandon C.
Mars ll 400

Very good product. Solid, good spectrums, powerful, and exactly what I expected. Plan on getting another!

Catherine Patry C.P. Catherine P.
Awesome sweeeeeeeet

I love the Mars Hydro 400 and I also just bought Mars Hydro 2 1200 watt waiting on it to come in the mail actually waiting on Eric to send me a tracking number hurry up hurry up please just kidding awesome service

Mars Hydro Mars Hydro Mars II 400 Product #: 2975261443 Regular price: $174.99 $$174.99 Available from: Mars Hydro New In stock
   No returns | 2-year warranty

   Authorized dealer of this product

Commericial Grow? You may be eligible for a huge energy rebate. Contact us to learn more.