Mars II 400 Full Spectrum Grow Led Light - Mars Hydro

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Mars II 400 Full Spectrum Grow Led Light - Mars Hydro

  • Actual Power: 150W+/-5%@100--277V

  • Coverage: Veg: 3' x 3' (90x90cm); Bloom: 2.5' x2.5' (75x75cm)

  • Compared to HPS/MH/HID: 200W

  • Average Yields: 1g/W

  • The Item You Check is Now Discontinued. but Mars TS 1000  will be Great Choice for Upgration. Click Here to Know More! 


Availability: Out of stock

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Frequently bought together

Love tech&nature Review by Fisherman / (Posted on 6/15/2019)
Highly recommend for one huge plant in a 1mx1mx2m tent, It consumes less electricity than reflector 1000W and gives less heat, (Caution if you're living in a studio type of apartment/house, would never recommend you to buy 1000W, (it heats so fast in summer!)) Go, low people, plants can't take more than they could. 300w is perfect for a single huge plant, 1kw is perfect for 4 plants in the 2m wide growing area.
Good luck Review by Nad / (Posted on 1/11/2019)
I used 2 marshydro two years ago and the results are amazing with dutch passion autos
The tent is 120*150*250
I started to 50 100 gamms per plant but the second year is amazing 3 400 gram the average yield any autos what i tried
1 plant 1 light is the best you can do with dwc technology only 10 20 minutes daily set up to 90 100 day and voila
So highly recommended
Amazing Review by Perna / (Posted on 1/11/2019)
Auto Cindarella Jack 404 gramm dry buds under ONLY 1 light
First time mars user. Review by Phoenix / (Posted on 6/6/2018)
In my first grow with my mars ll 400 and my plants seem to be loving them.

Can’t wait to see the bloom stage.
Mars II 400W Review by MikeC / (Posted on 5/27/2018)
Works great. Nice and quiet and barely any heat production.
Pretty good! Review by Demonsparkx / (Posted on 12/26/2017)
Have 3x the mars hydro 300W led panels. Great
For what they are and their performance thusfar. Would love to showcase sponsor your other products if i could! See more on my reviews for the mars 300 only on YouTube @demonsparkx
Best on the market Review by D / (Posted on 10/13/2017)
Mars lights are in my opinion the best on the market. The specifications of these lights are in the same range as your more expensive led's but at a very reasonable price. Don't be fooled. There are cheaper led's out there but not better. I had a spectacular harvest from this light. I'm very impressed with the results. Getting ready to purchase another one with a tent.
400 Review Review by Smokey / (Posted on 7/4/2017)
the light is a decent product
Nice healthy plants! Review by Chris / (Posted on 3/14/2017)
On my second grow with the Mars ll 400 and I couldn't be happier. Not a lot of heat and my plants are loving them. Thanks for great service and shipping!
Great value Review by Frankir / (Posted on 3/12/2017)
Mars hydro led grow lights are very powerful lights as a reasonable price. My plants absolutely love these lights. I use my mas II 400 in a 2x2 grow tent. Mars hydro is the solutuon to your grow needs if your looking for high end led at a low cost.
Works Great! Review by Julio / (Posted on 3/11/2017)
Bought 2 and Both turned on just fine, Was kinda nervous of one not working or both kinda have a little bad luck.Overall my plants are loving it !
Mars II 400 Review by Dane / (Posted on 3/10/2017)
I have had nothing but great success with this light. I bought another and of corse it also works great. I had a question and got fast answers from Mr Bruce Lee via email. Highly recommended.
the light Review by tommie / (Posted on 3/10/2017)
great light 4 the product did the job !
light on Review by tomslick / (Posted on 3/10/2017)
one of the best light in the business mars2 was the best light i can buy
have no complaints, great lights, priced right Review by barrysgroove / (Posted on 3/10/2017)
Bought 3 lights now from mars hydro, no problems with any of them, they do a freat job
Amazing light! Review by 5kGrowPro / (Posted on 3/10/2017)
I bought this light for my indoor vegetable garden, and I have been absolutely amazed with the results. My yields have been great! The system runs cool and fairly quite. I have not noticed much of a power consumption increase. You cannot go wrong for the money!
Great LED Great customer service Review by Christian / (Posted on 3/10/2017)
Bough 4 of these off Ebay and could not be more pleased. Can't wait to buy two more!
Great for some North American Pitcher Plants Review by Bill / (Posted on 2/7/2017)
I bought this wonderful light from Mars Hydro's Sean Shao because I grew carnivorous plants indoors. Parrot Pitcher Plants, Sarracenia purpurea venosa, and other S. purpureas thrive under it, but it's too bright for Venus Flytraps. It runs cool, the LEDs stay only warm to the touch, and to protect your retinas, you may need sunglasses to block the blue part of the spectrum. If you grow the plants I grew, this light is great for most of them.
Impressive aftersales service Review by AlexSPb / (Posted on 1/3/2017)
I am more than happy to use your lamp! Plants growing very healthy and when it combined with hydroponics, it giving perfect results!
For anyone who is doubt about this lamp I want to say that I am not disappointed, Even after some diodes has burned out, I just wrote to support and they sent me new diodes and I replaced them. Its easy.
Great Product, Great Service, Awesome Company. Review by Fisheye Cannabis Culture / (Posted on 12/4/2016)
I was a little skeptical about these lights at first, So I just bought one. After I tried the first one I was so happy, I bought 5 more lights from Mars Hydro. Light work great and am very happy with this company.
Free shipping awesome Review by f***a / (Posted on 11/1/2016)
as described...shipped well and quickly...Thanks
good Review by e***t / (Posted on 11/1/2016)
Good transaction,thanks.
GOOD Review by AM / (Posted on 11/1/2016)
Light looks good, thanks!
good size Review by J.K.R / (Posted on 11/1/2016)
great service and always willing to respond to questions asap
I like this light Review by j***a / (Posted on 11/1/2016)
Fast Shipping! Great product!
A+ Review by Rob / (Posted on 11/1/2016)
Exactly as advertised! product works! Very well packed. Fast delivery
A++ Review by M / (Posted on 11/1/2016)
a great experience thanks ONE of the good sellers. Thank You (REALLY)
5star Review by Dave / (Posted on 11/1/2016)
The best
A Review by M*****F / (Posted on 11/1/2016)
very very very solid build
A Review by Rob B / (Posted on 11/1/2016)
a great experience thanks ONE of the good sellers. Thank You (REALLY)
A++++++ Review by Tom / (Posted on 11/1/2016)
Great company, Great product. Great Price
A+ Review by Timmy R / (Posted on 11/1/2016)
fast shipping and very nice lights. very happy!!
A Review by Mark F / (Posted on 11/1/2016)
Fast shipper, quick response to questions. Lights are working well so far.
5star Review by Brent F / (Posted on 11/1/2016)
Shipped fast and as described - Good seller
5star Review by Frank B / (Posted on 11/1/2016)
Got it early works great. Would order again
5star Review by Dave / (Posted on 11/1/2016)
Super fast shipping, great followup, dependable for quality
Don't stop making mars II 400 Review by Wonderboy / (Posted on 10/21/2016)
PERFECT FOR WHAT I GOT! They are perfect for 2x2x2.5 ggt! (I hope it's alright If I say that) easy to use case fans with tubberware & mesh screening for homeaide odor nuetralizer ( a "cf" u no)that in my idea is perfect for 3' ONES; sog; 6-9 indica flowers. Suprised me! thought i found a pearl! I would NOT STOP MARSII 400 AT LEAST FOR THE ONE like me. It's all I need to be successful. Just telling u. The da wants to surround me with concrete for one year, I think I'm gonna accept plea bargain for small amount.possession green? Yes! And giving rides but , all gravy; when I GET OUT IM GONNA NEED ANOTHER A FEW MORE AND GET ANOTHER 2x2x2.5 ggt! Pray and hope they will still have them available. Well done manufacturer of the one I bought. I understand trying to match the big star (sun) if you are but I see losing the mars II 400 for 2x2x2.5 ggt the same as losing my business. My #1-4-$. If they quit making this one looks like I will have to find someone else with same genetics as the mars II 400 0R BUILD MY OWN. Anyways, bummer, I got time to think about since I'm taking one years "behind no alcohol bars" maybe it will be like John the Baptist, or one of the Paul's, or the one grater than even these. Heavenly job to keep at least this particular one for what I got! But I do need another one year from now. My He! Will give me another when I walk out then in my whites! Thank you MARS-HYDRO! Reconsider for me or save me three more one year from NOW!

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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how much plant is recommended for this one lamp?

Hi Sir,

Thank you for your message and concern. The quantity of plants bases on its size.If it is in seeding, you could put 2-3 plants under the Mars II 400.If it is a larger one, you could put only 1 plant under the light. Hope this is helpful. 

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Hello,Do you still have to use a timer on these lights I have a mars II 400w with the two toggle switches coming. or are they on 24/7? Just curious if I still have to purchase a timers too.

If you want to control the automatic light switch, I suggest you add a timer

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Is this the 2018 Upgraded SMD chipped version, qre all Mars 2 400w now equipped with the upgrades? Which of the chips have been replaced with smd, some or all?What are the differences between the chips?Thanks

All MarsII series led use new SMD chips, this chip has no lens out of leds, and its electrical current is also more stable 

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Can I buy and use a dimmer switch with this light? If so is there a recommended one?

Mars II 400 cannot be dimmable but it has veg and bloom switch. 

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when its time to turn on the Bloom light switch do you keep the veg lights on too ? So that all the lights are on at the same time ?

Generally, the bloom switch should be turned on after 6 weeks vegging.

During flower stage, both switches should be turned on. 

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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. [email protected] or [email protected]

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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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