Mars Pro II Epistar 320 Best LED Grow Light - Mars Hydro

Mars Pro II Epistar 320 Best LED Grow Light - Mars Hydro

  • Actual Power: 620w+/-5%@100--277V

  • Coverage:Veg:4.5’x4.5’(135x135cm); Bloom:4’x4’(120x120cm)

  • Compared to HPS/MH/HID:800w

  • Average Yields: 1g/w

  • Average Yields: 1g/W

  • Use coupon "Mhblurple" to check out and save 20%; 
    Only available in UK and EU countries, other countries, if any order in, we won't ship. Please kindly check other options like 1pc TS 3000 or 2pcs SP 250. Thank you! 


Availability: In stock

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Additional Information

Weight 17
Item NO. Mars Pro II Epistar 320 led
Draw power 120V :5.2A ;621W 240V:2.88A;613W
Coverage Flowering: 4.5ft*4.5ft, Veg: 6.5ft*6.5ft
Spectrum 440nm, 460nm, 630nm ,660nm,730nm(IR), 2700k-3000k
Dimension 69x66x17cm
Work Temperature -4°F ~105°F (-20°C ~ 40°C)
Compare to HPS/MH/HID 800watt
Lifespan 50,000hours
N.W/G.W 17kg
UPC Number 600740988868
Spectrum/ Par

Grow Tips

1.How do I determine the right light for my grow area?

Measure the floor space. Multiply the length times the width and this will give you the square footage. You should be able to get decent results with 30-50 actual watts of power per square foot.

2.For larger areas should I go with a single large panel or multiple medium to small lights?

Using multiple lights allows you to better distribute the intense light in more areas of the grow space instead of having all of the higher intensity light concentrated in only one area while the outer edges never receive intense light.

3.Recommended Hanging Distance Above Plants

Seedling: 24'' Germination: 24''-30'' Veg: 18''-24'' Flower: 12''-18''

4.Here are more tips for grow under our light:

Growth stage, turn Growth switch on. Bloom stage, turn Growth and Bloom switches on.

5.Recommended Lighting Time

Veg: 18/6(on/off) or 20/4(on/off) Flower: 12/12(on/off)

6.Recommended Growing Conditions

The rate of photosynthesis and transpiration are directly affected by temperature, humidity and airflow.

The perfect temperature and humidity for your plants are found between 75°-85°F and 50% - 70% humidity, with plenty of airflow to replenish CO2. PH is 6-6.5. You may add more calcium and magnesium than normally needed.

7.Please Note

The light is not water-proof, so do not use it under water environment.

Light may be too strong, please wear your sunglasses when looking at it.

Some leds seem dim. They are IR. Human eye can not see IR very clearly, but you can wear sunglasses to check.


Product Questions

When will my order be shipped?

Your order will be shipped within 24 business hours after we receive your cleared payment. Local stock in US/Canada/Europe/UK/AU. The delivery will take about 2-7 working days and no custom tax is needed if shipped locally.

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I see some product review videos, and they show a remote for the pro series, but I see no mention in the product description on your website.. please explain.Thanks you, Scott

ProII series led has no remote controller, we stopped producing led with it. Led with switches is more popular and convenient to use. 

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Do you offer warranty on the light?

Yes, we offer warranty on each light of Mars Hydro. If there is any problem about the light, email Mars Hydro service timely and we will help you as soon. or

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Do you know the ETA when the light will be delivered after I place order online?

Yes, we do. As usual, package will be delivered within 2-5 business days in USA or CA, and 3-6 business days in UK or EU. Besides, Mars Hydro service will email you tracking number and link. Also we will track the package timely and email you to pick up the package after it is delivered.

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Can I order some spare replacement parts when I order the light? If can, where should I order them?

Yes, you can buy some spare replacement parts if you would like. But you can not order online directly. You should contact us online or email Mars Hydro service. We will help you.

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Are there any other items together with the light? such as powercord, cables and so on.

Yes, there are. We pack the light together with powercord, cables, manul, and after-sales warranty.

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Customer Reviews 10 item(s)

1-10 of 26

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Great light! Review by MyDogSpot / (Posted on 11/24/2019)
I have been using 2 of these lights for 3 years now, 24/7 in flower. Not one problem, it’s still like new.
Mars-hydro has been excellent to deal with, and shipping was very quick.
I’ll continue to buy Mars-hydro based on my personal experience.
Worth the buy Review by Dye-Lon / (Posted on 11/14/2018)
Awesome light, stupid bright and the plants are loving it!
Like it. Review by James / (Posted on 3/6/2018)
Very good product, love it.
week into Review by ledtest420 / (Posted on 3/21/2017)
looks to be doing great for lower brances also my buds love it.there is a differince from
my all grow rooms watch the temp can get low with led lighting.this light puts out enough heat to get temp exactly right and u can control how you want.every room different the temp has to be controled.this light will not let you down if you control the temp in your grow.will own day.just happy to own 1 that will make me 3.hahahahaha good l
Nice product Review by Lee king snatch / (Posted on 3/15/2017)
This thing is the bomb
Pro2 320 Review by Mike / (Posted on 3/10/2017)
Awesome light it builds big plants
Epistar 320 Review by Mike / (Posted on 3/10/2017)
I bought the pro2 320 it's a awesome light it is well worth the price low heat very nice light will buy another one
I can't believe the quality and results for the price! Amazing! Review by Keez / (Posted on 2/28/2017)
So far so good highly recommend!!
Great product Review by Mike / (Posted on 2/1/2017)
Great light like the yeld I get from it like to buy another one but the price is a little bit high compared to the first one but other than that I love it far best light then I have had in the past awesome job on this light
good product a Review by bamagreen / (Posted on 1/9/2017)
Great light love it it puts off the heat though

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