Last Updated: November 25, 2018 (Refresh Now)
MarsHydro 300W LED Grow Light Full Spectrum for Hydroponic Indoor Plants Growing Veg and Flower
Last Updated: November 25, 2018 (Refresh Now)
8.9
SCORE
/10
Total Reviews
840
Old Reviews
282
Unverified
95
Spam Test
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LED
TYPE
Review Analysis - 463 recent, verified reviews
Detailed Mode
Features
83led, plants, grow, marshydro, led grow
+93%
-7%
" ... It is small, but it is very bright and can grow 2 plants under the light. ... "
" ... Love this light! ... "
" ... Just think should let other people know that this mars600w light is great. ... This light has ETL certificate too. ... "
" ... I have learned that most people discussing and reviewing LED grow light are weed growers, and they need a ton more light than houseplant & orchid growers. ... It is actually more light than I need. ... "
" ... I got some mars600w lights for i got great harvest with it. ... I like the light's spectrum with 50% blue and white leds and 50% red leds. ... My plants grow well with the light. ... I will get more and more marshydro led grow lights. ... "
" ... you can see difference of my plants with the mars600w light compare with other lights. ... "
" ... This is a great little lamp! ... "
" ... I think this marshydro light is more effective compare with some local expensive lights like Kind led (which price is 2-3 times than marshydro lights). ... Most important is that my girls like the light. ... "
Product Reliability
57plants, veg, update, orchids, harvest
+75%
-25%
" ... work great running non stop . ... "
" ... Working as intended and the plants love it so far (they're in veg) ... "
" ... Will update if necessary. ... "
" ... I have been running four of them for almost 100 days straight running 24 hours a day almost 20 days 12 and 12 now satisfied with the lights they do a pretty good job I can't complain on the price ... "
" ... One we bought over a year and half ago. ... The other one was purchased a year ago along with the 600 watt one. ... "
" ... No complaints with this light, its been working well so far with no isuues. ... "
" ... Will update this review indefinitely if any changes! ... "
" ... Seems to work fine ... "
Price
47light, led, watt, mars, beat
+94%
-6%
" ... I don't know about longevity, but for me this was a huge bargain. ... "
" ... The price was cheap for the quality. ... "
" ... Very powerful and great for plants at low price. ... "
" ... Well worth every penny! ... "
" ... This item works well and is worth the price. ... "
" ... Very cost effective solution to getting a good full spectrum. ... "
" ... Definitely worth every penny. ... "
" ... A great light for the price! ... "
Delivery
33delivery, arrived, packaging, fast delivery, packaged
+100%
" ... Shipped very well and quickly. ... "
" ... came on time, and not damaged! ... "
" ... Day 1 arrival seems good so far! ... "
" ... Came in great packaging with no damage. ... "
" ... Came well packaged, works great ... "
" ... Update 9/20/17 Ordered A second one, arrived a day ahead of time. ... "
" ... Excellent, all you needed in one package ... "
" ... Work great outta th box. ... "
Marketplace
28expected, advertised, works, thank, described
+89%
-11%
" ... The lightning is awesome, I thought it would be more off the red/purple color like in the pictures, but was surprised that it showed more like white LED . ... "
" ... works great thanks ... "
" ... I wrote a blog post titled My Growing Setup on my blog Orchidgardengeek.com and I have a few photos of what it looks like turned on and more details of it's use. ... "
" ... company seems to be really good as well. ... "
" ... First review for amazon because the product is that good! ... "
" ... Just as described. ... "
" ... Better than i expected. ... Granted the Cost is higher but this product will pay for itself in the above descriptions! ... Thank you wonderful product. ... "
" ... this is an awsome company. ... "
Night Photography
28little, bright, well built, well, small
+89%
-11%
" ... I'm so shocked by the amazing small light. ... "
" ... The light is extremely bright. ... "
" ... Nice little LED light! ... "
" ... Fantastic little light. ... "
" ... A great light ... "
" ... Light is perfect for flowering. ... Really impressed with the amount of red light. ... "
" ... Great light for begginer growers. ... "
" ... It is quite and provides plenty of full spectrum light. ... "
Design
21purple, grow, red, mars, white
+90%
-10%
" ... Just look happier . ... "
" ... It is bright and the light spreads out nicely. ... "
" ... GREEN THUMB PERFECTION WITH THIS ITEM,IF USED CORRECTLY 😉 ... "
" ... Looks great will recommend to others ... "
" ... Dont look at them without a welding mask lol. ... "
" ... There are some white LEDs in there, which looks more natural overall than just red and blue LEDs. ... "
" ... I harvested 45g of beautiful, dense nugs. ... "
" ... I bought a cheap white book case from amazon and cut a hole in the top to rest the light on so it can shine down on my plants (I removed the middle shelf). ... The book case set up looks nice. ... "
Build Quality
20hanging, well made, housing, heat, fixture
+85%
-15%
" ... Great product, solidly built. ... "
" ... Packaged very well and proper +1 no damage and build quality looks decent for what you pay for. ... "
" ... Its built very well not flimsy in any way. ... "
" ... Durable, easy to hang and use. ... "
" ... Mounting posts are solid metal, has carabiner and steel cable/clips to mount. ... "
" ... Or make them adjustable. ... "
" ... It comes with 4 metal hooks and wire for hanging. ... "
" ... It's sturdy and well built, as other reviewers have said. ... "
Cooling
19heat, tent, fans, cooling, hot
+95%
-5%
" ... I bought this to winter my orchids, bonsai, and houseplants in my basement (they live outside in the summer). ... "
" ... It stays pretty cool too. ... "
" ... Not too hot and quiet enough not to bother you. ... "
" ... My room is also cool now and im not having to deal with the heat killing anything fruiting. ... "
" ... plus the built in fans, it doesnt get hot. ... "
" ... Very nice product, gets to be almost too hot though. ... "
" ... Love the fan for safe cool down , ... "
" ... The fan that is on the light keeps it cool and the light itself doesn't put out alot of heat. ... "
Product As Described
13advertised, works, described, like, description
+100%
" ... The lightning is awesome, I thought it would be more off the red/purple color like in the pictures, but was surprised that it showed more like white LED . ... "
" ... I wrote a blog post titled My Growing Setup on my blog Orchidgardengeek.com and I have a few photos of what it looks like turned on and more details of it's use. ... "
" ... Just as described. ... "
" ... Better than i expected. ... "
" ... The product is as advertised. ... "
" ... Works as advertised. ... "
" ... Works as expected. ... "
" ... Works as described ... "
Storage
13grow, plants, growing, 3ft, tall
+100%
" ... When installed properly, the light hangs evenly and distributes light to my entire space. ... "
" ... So 2 of these lights are perfect for a 3ft×3ft grow space. ... "
" ... I Maximize my grow space as much as I can. ... "
" ... Decent light for a small space. ... "
" ... My plants are growing nicely! ... "
" ... I am using 2 of these for low heat in conjunction with a 600w HPS in a 5x5 space. ... "
" ... My plants are doing so well and growing so big and tall that I am going to have to order another one and increase the area size for my plants. ... "
" ... Definitely going to get the mars 600 to add In with this grow so I can space the plants out more, and maybe even add a few more plants to the grow! ... "
Food Items
12peppers, growing, grow, veg, plant
+100%
" ... Been using it over a week now and I have 5 plants in veg. ... "
" ... Great for seedlings and young plants. ... "
" ... My plants are lovin it and the heat is no longer a problem. ... "
" ... Plants are happy and healthy. ... "
" ... our plants do great under them. ... "
" ... This is my first grow light and have just been using it for a week but already my hot pepper plants are sprouting through the seeds. ... "
" ... Plants seem to love it. ... "
" ... Our peppers were flowering but not producing. ... Within days of using this product peppers were growing. ... "
Ease of Use
11easy, small, easy to use, easy to hang, use
+100%
" ... Easy to use little heat but not much. ... Only thing I’d change is the holes for the mounts on the lights could be bigger making it easier to hang different types of set ups. ... "
" ... Great quality and easy to use. ... "
" ... Durable, easy to hang and use. ... Would reccomend for beginners! ... "
" ... Easy to hang and use. ... "
" ... Great size, easy to set up, good spectrum. ... "
" ... It was easy to hang, and seems solid. ... "
" ... Nice, for supplemental lighting for a very small setup. ... You will absolutely require additional light intensity for a robust small setup. ... "
Display Clarity
11bright, really bright, panel, melt, dots
+82%
-18%
" ... The light is extremely bright. ... "
" ... Lights are super bright . ... "
" ... It’s really bright purple tint. ... "
" ... LED is the way to go. ... "
" ... Its super bright by the way. ... "
" ... Nice and bright. ... "
" ... Great quality led👍 ... "
" ... first time using this type of light, really bright. ... "
Size
11light, tent, size, compact, space
+91%
-9%
" ... I'm so shocked by the amazing small light. ... "
" ... Great little light good light to get started small and compact doesn't take up too much room in my tent and is surprisingly strong for a small light ... "
" ... I'm using a very small tent (18x30x36) and this light was perfect. ... "
" ... this is one way to keep more money in your pocket. ... "
" ... This small light produces huge results! ... Don't let it's size fool you. ... Works great for small project as well as large. ... "
" ... Decent light for a small space. ... "
" ... Outstanding light for such a small area ... "
" ... The Light is good its bright for the size perfect for what I needed it for ... "
Setup
10setup, set, small, install, mars
+90%
-10%
" ... As well, the people at Mars are professional and polite, and they are eager to satisfy. ... "
" ... Used this to replace an old t5 setup for clones/ early veg and they love it. ... "
" ... they came quick, easy to install & looks great! ... "
" ... I literally saw results overnight and every day after. ... "
" ... Nice, for supplemental lighting for a very small setup. ... You will absolutely require additional light intensity for a robust small setup. ... "
Capacity
10room, foot area, coverage, 4, working
+100%
" ... Works great no heat keep house or room at a good temp, will,get another one if you can afford to get a bigger one instead of these two small ones, little coverage. ... "
" ... Perfect for a 1.5square foot area in flower or even a 2square foot for veg. ... "
" ... My room is also cool now and im not having to deal with the heat killing anything fruiting. ... "
" ... Outstanding light for such a small area ... "
" ... You will need one for each ~ 4 square foot area. ... "
" ... That’s a big range. ... "
" ... I plan on purchasing again for my space. ... "
" ... Everything works great the light is very bright and defiantly covers a good size area. ... "
Power Consumption
10energy, power switch, plants, wattage, watt
+90%
-10%
" ... Very bright, less heat, can save more energy. ... "
" ... Excellent low power LED. ... "
" ... Plants are loving the new light, i am loving the reduction in heat and power consumption. ... "
" ... Great unit, but it's missing a power switch. ... "
" ... I see more rapid growth, decreased temperatures and lowered energy consumption! ... "
" ... If it had a power switch, it would have gotten 5 stars. ... "
" ... Bonus is getting 300 Watts of light for 140 Watts of power. ... "
" ... Also, we see no major difference in our electric bill between usage. ... "
Heating
10light, hot, fan, way, quite
+100%
" ... Great growth, not much heat put off, and one happy grower. ... "
" ... Easy to use little heat but not much. ... "
" ... Not too hot and quiet enough not to bother you. ... "
" ... plus the built in fans, it doesnt get hot. ... "
" ... Very nice product, gets to be almost too hot though. ... "
" ... The fan that is on the light keeps it cool and the light itself doesn't put out alot of heat. ... "
" ... No heat issues. ... "
" ... The light does put off a fair amount of heat. ... "
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Specifications
Display
Type: LED
Recommendations
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