Mars SP 250 Best Indoor Led Grow Light - Mars Hydro

Mars SP 250 Best Indoor Led Grow Light - Mars Hydro

  • Actual Power: 245W+/-5%@100--277V

  • Coverage: Veg:3’x5’(90x150cm); Bloom:2’x4’(60x120cm)

  • Average Yields: 1.8g/W

  • Compared to HPS/MH/HID: 400w

  • PPE:2.35--2.57umol/J

  • SP 200 is previous name of SP 250, if you get the SP 200, the sticker info is incorrect, please contact us for the updated info.

  • Buy 2 for US$257.39 each and save 2%
  • Buy 3 for US$254.79 each and save 3%

Availability: In stock

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Additional Information

Item NO.Mars SP-250 LED
Draw power120V:1.93A;232W 240V:1.01A;242W
Spectrum380~410nm, 650~660nm, 730~740nm, 3000~3200k, 6000~6500k
Coverage 2'X4'
Chip BrandNew SMD Epistar
Work Temperature-4°F ~105°F (-20°C ~ 40°C)
N.W/G.W7 kg
Lifespan50000 hours
UPC Number686494423275
Compare to HPS/MH/HID400 watt
Plug TypeEU,UK,AU,USA,Japan
View Angle of LED90°-120°
WarehouseUS, CA, AU, EU, UK
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: 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

Just curious if this light carried ir leds. Thanks.

Yes, SP-250led has IR in it 

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Hello, under description, dimensions 35.5x2.95x2.63ft, just wondering if that is correct?

sp150 packing size is 16*15*66cm (6.3''x5.9''x26'')

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is it dimmable?

Yes, SP-250 is dimmable 

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I need to know do you have a par sheet with 2 sp 200 light for a 4x4 tent or can you test them and email me the PAR sheet. thanks

Yes, we have that sheet. Pls send email to for that. 

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How much umol/J for this led?

It is around 2.57umol/J

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Hi, when will be this led lights SP-250 available in DE Deutsche warehouse?

Hi Sir, the SP 250 are now avaialble in every warehouses of Mars Hydro in US, Canada, Austrilia, Germany, UK and Russia, feel free to order. :) 

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What is the warranty on the SP 250

All our products has 3 years warranty, 3 month full and over 3 month, will have some handing fee or shipping fee needed. The lights are using the new technology chips, will help you have less warranty issues. :) 

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How high from the canopy do I hang the SP 250? Is it 18-24" in veg and 12-18" in bloom?

18-24'' at veg 12-18'' at flower

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Does the light come with necessary equipment for hanging?

Yes has yoyo hanger and hanging kit inside

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How long of a warranty do you offer on your sp 250 lights

We offer 3 years warranty on all of our lights; 

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Can the light be daisy chained?

Mars SP 150 cannot be daisy chained. 

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Is it waterproof?

The SP light is IP 65, waterproof. So using in humidity environment is okay.

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What is the difference between SP200 and SP 250? They look the same.

Hi, the SP 200 is the original name of SP 250, all the specificaiton is the same. But our factory made a mistake to put the original stickers and instruction book when we ship the first several shipment, so some of you might get the light with wrong item number and specification data on the sheets. please refer to the current site info for reference. 

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Recently purchased the SP250 and love it, but the power supply gets too hot, is this normal?

The SP series are no fan design, so the panel needs to release heat itself. We are using all aluminum meterial for the light body, and all the material are anti-fire, over 90% of the components are UL listed, so the light won't catch fire. Also the heat is under control, won't influence the lifespan of the light. Please don't worry. BTW, the whole room temperature won't increase too much. If you don't like the heat of the light, you can add one small fan above the light, it will help a lot, also during winter, it will not be a problem as well. 

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How can I move the driver outside of the tent?

Yes, you can move the driver outside of the tent, Here is a instruction video you can check: 
For the extra wire, you can email us for more info since we don't list on our website: 

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Can the light be daisy chained?

SP 250 can be daisy chained, but only for three of them with our special customized cords. If you need them, please email us for more info: 

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How can I adjust the wattage?

Here is a reference video instruction to help you, please check: 

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What is the recommended hanging height and hanging hours?

During seedling: 18/6 or 20/4; above 30'' 
During veg: 18/6 or 20/4; 18~24'' above canopy
During flowering: 12/12; 12~18'' above canopy

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What is the SP 250's coverage for veg and flower?

During veg it can cover 3'x6'; 
During flowering, it can cover 2'x4'

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Customer Reviews 10 item(s)

1-10 of 15

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Very impressed Review by Shotgun Facelift / (Posted on 10/12/2019)
I just purchased a sp250 for my 2x4 tent. I replaced a 300w and a 600w blurple and I am very impressed so far. The switch is in week 3 of flower so it will be interesting to see the results.

So far I am very impressed with the light. Not only is it nice not having the purple glow, but has balanced my number beautifully. I am currently not having to run AC, and just plumb in some cool fresh air from an open window through a carbon filter.

Over all, so far, very happy and glad I purchased the SP250.

Follow my grows with the MH SP250 on Instagram @shotgun.facelift
These lights are great! Nice spread with 2 in 4x4. Review by jcoog / (Posted on 9/25/2019)
Just received my two SP250s, and went to work testing the so called heat issues. They do in fact heat up the tent, but not bad. I have a 4x8, only growing in 4x4 to start (first grow). The lights with ballasts attaches kept the canopy level at 80.2 degrees. (Vivosun 4 inch intake fan, AC infinity 6 inch exhaust). The SP 250s now come with cord long enough to put ballasts outside tent. I used the wood inserts it shipped with, and mounted the ballasts to those, hung them outside one of the 8 inch vents. Temp dropped to 77-78 degrees. It’s made it a little easier with fans speeds to control humidity with the ballasts outside, but no real issue keeping them on! And they are not kidding about these things being BRIGHT! Started grow today with 6 Auto GG#4s....wish me luck!!!!
high end light at low end cost Review by mr toehead / (Posted on 9/18/2019)
this light is on par with outhers costing three times more build qulity is great top brand driver mean well great white light engine mars listened and driver cord is eight foot long great job MARS HYDRO
Great Value! Review by CannaConnoisseur / (Posted on 8/10/2019)
Very good quality light! Great packaging. Fast shipping. Can't say more.
Best light for the price Review by Moki / (Posted on 7/12/2019)
I just purchased 1 of the SP 250 lights and WOW, what a great made light. I was originally getting the light for starts but after seeing the amazing output I am going to purchase 3 more for my 4 x 6 area to replace my (2) 630 CMH lights. I will post again when I get the other 3 lights.
Happy Day Mars Hydro!!!
worth the price abd then some Review by thx1138 / (Posted on 5/30/2019)
I am very happy with the performance of this light. I have it in the veg tent and its caused a huge surge in growth when compare to my previous light (a 240 watt HLG 4000K light with all white diodes).
Excellent Light and value for money Review by Hairyman@afn growauto@instagram / (Posted on 5/14/2019)
I have been very impressed with this light , replaced 450watts of blurple with excellent results.

Suitable for germing, veg and flower .

Great light distribution and spectrum.

Great build quality and like they say easy to hang, its a plug and play light.

Fell in love in 3 days with first one and now have 4 with 4 more just ordered. Review by MG (Midnight Gardener) / (Posted on 4/25/2019)
Ordered one of the SP 250 to try out and in 3 days I noticed sizable gains compared to my reflectors so ordered 3 more to fill a 4x8 tent and the results blew my mind. Actual full coverage of the tent , spectrum is great but would like to be able to mount drivers outside of tent for even better temperature control. I just ordered 4 more for my other 4x8 tent and will now reap the benefits of increased productivity at lower wall wattage than using now. Sending me a “gift” even though I was late for the 420 sale.
Excellent quality light at a great price Review by Lars / (Posted on 3/20/2019)
I'm really pleased with the quality of these lights. They are an excellent replacement for HPS/MH lights. I measured the evenness of the illumination using a quantum light meter, and it's far better than a HID light. The build quality of these things is excellent, it's full spectrum, so easy on the eyes, and water resistant. They are also so much lighter than HIDs and easier to hang and move around. I'm now thinking about purchasing several more for the university where I work.

I wish you could still get them at the preorder price, but even at the higher price, they are still a bargain for this quality light. Kind of crazy to think that just a few years ago you would have to spend nearly a thousand dollars for an LED light that would be lower quality than this one. Nice job Mars Hydro.
Unreal light for the price point. On off would be nice Review by Polish Pride Grower / (Posted on 3/14/2019)
At around $1 a watt 2 bars light a 4x4 like a airport runway. Sunglasses are a must when working around the lights. I could easily see 2 grams per watt 9 plants in 3 gallon pots in a 4x4 under 2 sp 250s. Mars should offer a option with a 12 foot cord with the option to have the driver outside the tent so no wiring modifications need to be made. Excellent Choice

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