MarsHydro: Pro II Cree 640W Review

Actual watts Bloom: 325~355w | Growth: 240~270w
Ideal area coverage [foot area] 2 x 3
Length, width, height 20 – 13 – 5
Recommended height  24 inches


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MarsHydro: Pro 2 Cree 640W is a big LED light with full spectrum. This light offers high intensity along with a high-quality set of fans. The diodes are from the Cree brand, designed to provide intense LED light. It needs to be at least 24 inches from the canopy, making it a good option for larger growing areas. It comes with two buttons to activate and deactivate bloom and growth modes.

Related: Best full spectrum led grow lights

The Good

  • Made and tested in the U.S.
  • Intense light provided by excellent quality diodes.
  • Good cooling system, it does not overheat.
  • Although it provides more red light, it is still a good product for vegetative stage.
  • Specialized technology to deliver uniform coverage.

The Bad

  • A little overpriced.
  • Quite heavy and big design. Though it is understandable since it is not a LED light for small growing areas.
  • High energy consumption for a LED light.


Recommended for

The MarsHydro: Pro 2 Cree 640W is a good option for people with a big canopy. It is not recommended for beginners. The design is very big and heavy, so it requires a great set of hangers. This is an expensive light. The price can be reasonable if you have an important inside growing project requiring a lot of lighting. Otherwise, many other options are more affordable than this light, especially when considered how much electric energy it consumes (costs around $25 per month when given lots of use). It has a 2-year warranty and the customer service is excellent with 8 working hours of reply service. A long-lasting solution for people seeking a big LED light for a big canopy.

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