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 5 item(s)

11-15 of 15

Buy one, seriously, you'll be impressed Review by GoldGrower, check me out on Grasscity and Instagram / (Posted on 3/10/2019)
I've been using the Mars SP-250 for a few weeks now and I'm super impressed with it. Compared to my HPS set on 250w it's twice as bright. It's lightweight, bright as hell, cool running, silent running, the light is a crisp white showing all the colours of your plants beautifully and your neighbours won't be suspicious from the standard purple light that so many LEDs have these days if you accidentally shine it through your curtains or something.

Being splash proof means you can wipe over the diodes with a damp cloth when they become dusty, this is so underrated in my opinion. Pretty much all the heat comes from the driver which is above the light so under it stays very cool, and if you wanted to you can take the driver off and positioned it outside the grow area by fitting an extension cord. This would reduce the heat even more but I find mine so cool it isn't necessary.

I like my reviews to be balanced to I want to say a couple of negative things but I honestly can't think of any. I haven't had any problems at all. Oh ok here is one thing I would change, it doesn't have an on/off switch, one of those would be an improvement, but it's a very small problem. And a dimmer which is easily accessible and adjusted without tools would be good. You can actually adjust the wattage /brightness but you need to unscrew the driver first which isn't ideal. That covers everything I guess. Buy it, you won't regret it
Exciting Review by Cheffrey / (Posted on 1/29/2019)
Just order 3 for my 4x4 tent. Cant wait!
Excellent Value! Review by Steve in MN / (Posted on 1/25/2019)
A very high output light at a really good price. I doubt you could find a cheaper light with this much output. The 4000K is a very visually appealing color temperature. Mine is drawing 257W@AC120V. I did dedicate a small fan to blow on this light since the driver gets pretty hot. I may see if there's a DC cord extension so I can mount the driver outside my tent. I noticed that some of the LED's appeared to not be on, but they were all in the same pattern on the strips, so I'm assuming that these are emitting infrared light. I wouldn't think twice about buying this light again.
good light Review by Luke Watson / (Posted on 1/4/2019)
My SP200 looks very good and I hope it gives me good results
Great Product! Review by Smith P / (Posted on 1/4/2019)
I'm glad you can give me a 10% discount for my preorder. I'M LOOKING FORWARD TO IT!

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