Mars Hydro TSW2000 Full Spectrum 300W Dimming LED Grow Light | For 4x4ft (120x120cm)


(14 customer reviews)

Related Product Recommendation

Core Coverage Max Coverage Recommended tent size Recommended fan size
2ftX2ft 3ftX3ft 27”X27”X63”/24”X24”X55” 4-inch fan
2ftX4ft 3ftX4ft 48”X24”X71”/55”x28”x80” 4-inch fan
3ftX3ft 4ftX4ft 2.9’x2.9’x5.9′/3.3’X3.3’X5.9′ 6-inch fan
4ftX4ft 5ftX5ft 4’x4’x6.5′ 6-inch fan
5ftX5ft 6ftX6ft 5’X5’X6.5′ 6-inch fan

Low Energy Consumption LED Grow Light:

Consuming 300w and mounted with 704 pcs chips, TSW2000 is able to replace a 400w HPS light while saving 25% electricity energy.

High Efficiency LED Grow Light:

With total light output PPF 716umol/S and leading PPE 2.6umol/j, it’s 50% more photon efficient and can promise a 30% more yield compared to the old HPS/MH lights.

Patent Highly Reflective Hood Design:

The reflector design on TSW2000 has been patented, which can effectively collect the light dispersed in all directions to improve its light utilization and help plants obtain more light absorption.

Full Spectrum Plant-Preferred Spectra:

By the special combination of spectra that emits most light in the 400-700nm waveband, is extremely conducive to plant photosynthesis. Adequate IR(730-740nm) is also included in the spectrum to induce bigger buds.

Dimming And Daisy Chain Function Available:

With an independent dimming knob on the removable driver, supporting 0-100% brightness adjustment and up to 15 LEDs daisy-chained in series, it provides various light intensity for different plants stages and meanwhile saves energy.

Reliable Certifications And Warranty:

CE, ETL, RoHS, UKCA safety certifications approved, 50,000 hours longevity, 5-year warranty, and local after-sales service centers.

Ship to


14 reviews for Mars Hydro TSW2000 Full Spectrum 300W Dimming LED Grow Light | For 4x4ft (120x120cm)

  1. Grower B

    I had my doubts before ordering, but everything went super smooth! The light itself is probably the best in terms of price/quality for 100*100cm tent

  2. Ashley M.

    Hey i had an issue with my light reached to Emma threw email she solved my problem right away. Great customer service

  3. Crystal M.

    Great light for my grown tent. Some of the best customer service I’ve experienced in years, they responded promptly when a light driver failed, helped me diagnose the problem and sent out replacement parts that arrived well before I needed them.

  4. Donald W.

    Just started to use it, and so far it is making tomato plants grow way faster than just sitting in the window. Hoping for a great season.

  5. Miguel m.

    Quick delivery, light is great. Ill be buying another here soon

  6. Hobie H.

    I’ve had this light for a couple months now and I’m pretty impressed by the plants quick growth and bud quality. Nice long colas with solid buds because of the intensity and penetration of the light. I have and will continue to recommend the tsl2000 for a 2×4 grow tent

  7. scott

    I love the lights , I bought four. Zero issues. They work great.

  8. Ryan

    3 weeks flower under Mars Hydro tsw 2000, plants love it.

  9. autumn j.

    The light is excellent for all veg stages of growth. Low power consumption with high PAR value is hard to come by but this light pulled it off. Had an issue with a driver for one side. Janet from Mars Hydro went out of there way to make it right. The customer service after sale is everything I would hope for from a company.

  10. Don R.

    I have had a lot of different types of lights Im Telling you Mars hydro is
    got this thing down.

  11. LORENZO B.

    Good replacement for my 4 foot 8bulb T5 fluorescent light that malfunctioned. Could have sworn I saw a video or an image indicating that the TS2000 came with 2 separate dimmers, one for each side. That influenced my decision to get this over some other options. Unfortunately, there is only one dimmer for the entire light. Oh well.

  12. Bruno G.

    J’avais utilis¨¦ une lampe d’un autre fabricant pour d’autres cultures et j’en ¨¦tais insatisfait. Apr¨¨s ¨ºtre pass¨¦ ¨¤ la Mars tsa2000, mes fleurs ont augment¨¦ en taille et en fermet¨¦. Tr¨¨s heureux.

  13. Tiago R.

    Everything better than expected. Zero noise and fast ship

  14. Carl

    Plug in and it works.Everything seems to be a pretty high quality.The Board is absolute silent +++.The Diodes are really bright

Add a review

Your email address will not be published. Required fields are marked *

You have to be logged in to be able to add photos to your review.


Click Here



1. What payment method do you accept?

-Currently, our website retail orders only accepts Paypal. and we will open other payment methods such as Credit Card, Debit, Bank Transfer in the future. -For offline bulk orders, customers need to contact. We offer discount for offline orders based on quantity. And we support a variety of payment methods.

2. What should I do if I cannot check out successfully?

-Contact us at , we’re always here to help.


1. How many days can I get my package after placing an order?

-We offer UK customers Free Shipping: Shipment can be arranged within 3 business days. Usually 3-8 working days as shipping time when the item is in stock.

2. How do I track my package?

-You can check your account if you register on our website. We’ll also send a tracking number confirm email to your email or SMS when the shipment is done.

3. If my package shows delivered but I did receive it, what should I do?

-Please contact ASAP. Our service team will offer you steps and solutions.

4. Do you ship to other countries of EU?

-We ship from Luton or London warehouse. Currently only supports mailing to the UK. -We can also mail to other countries in Europe, but you need to contact first. We will ship the orders for you from the DE warehouse. don't worry:)

5. I’m in Europe, do I need to pay tax?

-Most European countries do not have to pay taxes. (including Germany,Belgium,Luxembourg, Slovakia,Czech,Hungary,Austria,Netherlands,Denmark,France,Ireland,Italy,Poland,Slovenia,Spain,Finland,Latvia,Lithuania,Sweden,Bulgaria,Estonia,Portugal,Romania,Greece,Cyprus,Croatia,Malta) Others will need to pay tax and extra shipping cost.


1. How do I cancel/change my order?

-If you have not paid your order, you may log into your account and simply click the cancel button to cancel it directly. If paid, contact service ASAP. Once your order has shipped, we cannot cancel/change it for you.

2. How do I know my order status?

- Log into your account to check your order status. There’s 4 status: “Processing”, “pending”, “complete”, “closed”.

3. What is your warranty? What can I do if my light has a problem?

-We have a 5-year warranty(1st year free,2-5 year limited), and 5 warranty centers in the United States, United Kingdom, Germany, Australia, and Canada. Check our warranty page for more details. If you have a product issue, contact, we’ll support you.

4.The product is great, but I changed my mind. How do I return an unopened package?

-We accept returns within 30 days upon the arrival. Details check our return page. If you want to return an unopened package, pls contact for the following steps.


1. Is it discreet shipping/package?

-Yes. It is discreet shipping. All our packages are shipped with plastic foam to stuck the light and keep it safe; and without any labels “grow lights”, “grow tents” or brand name mentioned on the packages.

2. I got the old version light, and now I want a dimmer box and daisy chain, how can I do it?

-The old version and the new version are very different in internal structure, so it can’t just add a dimmer knob to realize the functions. Now only our TSW2000 & TSL2000 can have this function by replacing it with a new driver. The whole driver set would cost 100-150 USD. So we would not recommend customers to buy it.

3. Could I add a blurple/red/HID light side by side mars hydro led light?

-Yes, this is helpful if you want more blue/red lights.

4. I have a business plan, where can I contact you guys?

-Pls contact us at, any business cooperation is welcomed!

5. Is the light comes with UK Plug? and is the product safe?

-Yes, Discreet packaging with UK Plug. -There is no need to worry about safety. We are an 11 year old plant light brand. We have obtained several international certifications. Safety USE ETL/UL/CE/RoHS Certification.