Mars Cree COB 300W Led Grow Light - Mars Hydro

Mars Hydro; Led grow lights; COB led grow lights; Cree; CXB3590; Meanwell; indoor growing; full spectrum

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Mars Cree COB 300W Led Grow Light - Mars Hydro


  • Actual Power: 120W+/-5%@100--277V




  • Coverage:Veg:2.5’x2.5’(75x75cm); Bloom:2’x2’(60x60cm)




  • Compared to HPS/MH/HID:180W




  • Average Yields: 1.2g/w



  • Average Yields: 1g/W


  • Classic Mars Blurple Led Grow Lights for Indoor Plants, Now on Special Sales for the Countries that Still Have Stock. If your country run out of stock, please buy the Mars TS 1000 for upgration. 

Regular Price: US$232.99

Special Price US$186.99

Availability: In stock

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Regular Price: US$232.99

Special Price US$186.99

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Specification

Additional Information

Weight 6
Item NO. MARS COB
Draw power 120V : 0.99A; 120W; 240V:0.50A; 118W
Coverage Core coverage: 2.5'x2.5' / Max coverage: 4.5'x4.5'
Spectrum 450~475nm 620~630nm, 650~660nm, and white
Chip Brand New SMD Osram, Cree chips
Dimension 27x28x32cm
Work Temperature -4°F ~105°F (-20°C ~ 40°C)
Lifespan 50000 hours
N.W/G.W 3.4KG(7.5lb)
Warehouse USA, UK, DE, AU, Canada
UPC Number 600740988462
Spectrum/ Par
Grow Tips

Grow Tip

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 stage: 20''~28‘’ Veg Stage: 16''~20‘’ ;Flowering Stage: 10''~16‘’

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.

Q&A

Product Questions

Does the cob make more new series ? like 400w,600w, 800w, 1000w?

Our COB only have one 300w. If you like bigger wattage, you can order 2 or 3 COB to use. Use more small lights can make the light more balance. And we have 20% discount now.

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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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Total rating: 4.8

What does COB mean?

COB is a type of LED grow light, It's typically made up of a very large chip. Mars Hydro COB use Cree and Osram chips, Meanwell driver. Good materials, the price is also affordable

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How many of these lights for a 4'x4' tent?

4pcs of Mars COB can work for 4'x4', we have 20% off now this leds now

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Which Cree COB do you use exactly?

It is Cree Cxb 3590

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Does this have separate switches for veg and flower?

No switch on this lamp .

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Hello, Thank you for cob light, I am wanting to know if the Meanwell hlg-100h-54a driver in the picture, it shows the driver with the 2 black caps covering the opening to adj. output levels? Are they now on the bottom of the driver like sp250? No worries if not, just asking. Thank you.

No, the COB MeanWell driver is no dimming function, not same with SP250's driver

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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. service@mars-hydro.com or solutions@mars-hydro.com

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Total rating: 2.9

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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Total rating: 4.6

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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Total rating: 4.7

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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Total rating: 5.0

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Customer Reviews 10 item(s)

1-10 of 19

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Solid 5 star light brings out the best in your plants! Review by OB / (Posted on 4/17/2019)
An excellent grow light all around! I’ve been using 3 Mars COB’s in an array configuration for about 9 months and they’re really superb lights! A small cross breeze over the lights keep them cool to the touch. The light coverage/penetration is very good with these lights which is lovely. Plants stay low and don’t stretch much either. Very impressive yields holy moly! I own several different brands of high end LEDs and the Mars COB is my favorite! I can’t seem to justify using a different light these are THAT good!
These quiet lights very Review by Mar / (Posted on 4/12/2019)
I really like it
Bad ass cobs lights Review by Big Len / (Posted on 8/20/2018)
Hi there I just saw your coblight I would love to run your lights on my you tube channel show all the other grower your lights are awesome I would do show them off on my channel you tube channel Big Len .I am disabled can you help me out and I will help you with my groups thank you for your time please help me to help you
Great Cob Lights Review by NizzlyBear / (Posted on 3/27/2018)
These Cree Cobs are very well made and the cases are a great addition. With just a small breeze blowing over them they stay cool. They are much easier to hang than Cobs on a built frame and work very well to save space being very compact with amazing light output and spread per Cob with the added Osram blue/red chips. The price is very fair considering the quality of parts used and the case that Mars Hydro has designed is just fantastic. I highly recommend anyone interested in these lights, I have had excellent results with them.
Quick delivery and solid study build. Will follow up with a performance review. Review by Bethnal Green / (Posted on 3/26/2018)
I ordered 3 100w COB LEDs on the wednesday and they arrived on the friday. So the delivery service I can't fault. The packaging was excellent. The lights are completely surrounded in styrafoam so they can take serious knocks and there won't be any damage to the lights. The build quality of the lights are brilliant. They have a real solid feel to them. There seems to be a stigma when people read made in china. But these things are solid. Can't comment on how well they perfom yet until I get to the end of this run but so far they seem to be performing well. Will update with the results in a couple of months. But so far I'm very happy with the lights!!
3590 cree is the king Review by Michael / (Posted on 3/3/2018)
This light is the best. White Berry in 120x60x170 scrogg 2,5 g p/watt only with 100 watt cob.
Awesome small veg light! Review by match / (Posted on 1/26/2018)
This light is perfect for my purpose, a small seedling/ clone tent. I’ve had it two weeks and I can’t believe how lush these little plants are. The color is pleasing to look at while admiring the leaf growth. I’m at 24” over canopy. From what I’ve seen even in 18 days, I know this will vegetate my plants perfectly until their move to flowering tent. Well done Mars, shehshe!
cob Review by F.N. / (Posted on 12/18/2017)
This COB is one of the best on the market. They surround it with orsam far red chips to enhance terpene production very smart. This is one of the most efficient lights ever produced for growing marijuana. 800 watts will do a five by nine that is UNREAL
grown under 1 cob and 2 Mars 400's. hope to get one more cob again. Review by George DE Roth / (Posted on 12/12/2017)
1 week of flush left but pulled a small bud to dry and try out. Headlock OG (Chemdawg x Nightmare OG). Pretty dense. grown under 1 cob and 2 Mars 400's. hope to get one more cob again.
plants under cob light look very happy.thx Review by Steven Harrison / (Posted on 12/12/2017)
Having a little trouble with some of the leafs curling up, but it's not the light's problem, I know, and now sloved all, plants under cob light look very happy.thx

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Email:

Sales:info@mars-hydro.com

warranty:solutions@mars-hydro.com

shipment:service@mars-hydro.com

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08:30--17:50(GMT+8)

Factory address :

L Building, JingTie Industrial Park
He'ao Village,Henggang Town
LongGang District, Shenzhen, 518115,China

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