Mars Cree COB 300W Led Grow Light - Mars Hydro

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


  • The Item You Check Now is Discontinued. But  Mars TS 1000 Will be A Great Choice for Upgration, Click Here to Know More!   

US$259.99

Availability: Out of stock

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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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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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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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Does this have separate switches for veg and flower?

No switch on this lamp .

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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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