Roleadro Plant Grow Light, 600W LED Grow Light Full Spectrum Plant Light Dual-Chip Growing Lamp with ON/Off Switch,Daisy Chain for Hydroponic Indoor Plants Veg and Flower (only 110V)

I own a total of 56 of these lights. ***ONE YEAR UPDATE*** Every single LED and every single Cooling Fan continues to work. I will update this review again as needed. ***TWO YEAR UPDATE*** I never needed the warranty for anything. The lights continue to operate as they have since I've owned them. Out of all 56 lights, none of them arrived broken or dysfunctional. Only one of them came missing one small part that clips the hanging wires to the light body. I was able to fix this in about a minute by using a zip-tie to secure the connection. I purchased my first set of these lights that arrived 2/24/15, and another second set of these lights that arrived 4/28/15. Every single LED light has worked and continues to work as of 04/16/16. I will update when and if any go out or if anything else fails, and will add my experience with customer service if necessary as there is a two year warranty on these lights. According to my measurements, these lights run at 168 watts and 1.4 amps at 120 volts. They can run 85~265 volts, so amperage will change if you run them at different voltages but wattage will stay the same. Typically, one would expect the lights to run at 168 watts and 0.7 amps at 240 volts. I do have 20 of these lights running on 240 volts, but have not bothered to test the amperage under these conditions. I have three sets of 12 lights daisy-chained on a 20 amp 120 volt circuits. There is a little noticeable heat in the the first few power cords. Some heavier gauged power cords would probably fix the heat issue, but its nothing I'm worried about. I have two sets of 10 lights daisy-chained running on 20 amp 240 volt circuits with no noticeable heat. I have not tested the lumen or lux unit outputs of these lights. I use four of these LED lights to replace one of my 1000w switchable MH/HPS ballast setups. My 1000w MH/HPS ballasts were actually running at 1100 true watts. Four (4) of these lights run at about 680 true watts total, meaning I am saving about 40% on my electricity expenses while running these lights. To me the added expense of purchasing these lights up front will eventually pay off with the money I save on electricity while also reducing the electrical footprint of my crop. All good things. Another thing to consider is the heat these lights put out is much less than hot MH and HPS bulbs. As the year has warmed up I would conservatively estimate I am using 30% less air-conditioning to keep my crop cool, perhaps even more. Also, although not advertised with these lights, LED's typically have a much longer lifespan than MH/HPS bulbs and remain much more efficient in regards to light output throughout their life cycle. It is worth noting that the description for these LED lights suggests that there are two separate modes for vegetation and flowering stages by listing two separate light spectrum requirements for each stage. This is not the case. All of the LED's remain on at all times during operation. Also, the manufacturer suggests a maximum continuous running time of 16 hours a day. I have ran all of mine for 18 hours a day for several weeks at a time with no issues. Also, I do not believe these lights have 9 bandwidths of light. I can only pick out 6 types of led bulbs with polarized glasses over my eyes, so unless I'm missing something these are 6 band lights. This isn't a deal-breaker for me as my plants seem to do great under these lights. A potential buyer may consider a larger LED wattage setup such as a 600w or 1200w LED light. Many are available here on Amazon and elsewhere. The reason I went with these is that I felt that spreading the lighting over a larger space would be more effective for my situation. Also, these lights weigh in at about 7 pounds according to my digital bathroom scale. In my opinion, this low weight makes them easier to hang up, adjust, and move in comparison to other heavier setups. I used the Apollo Horticulture 1/8" Adjustable Hangers also found here on Amazon to hang these LED's. Similar hangers can be found cheaper elsewhere but I found that the Apollo hangers were higher quality products compared to what my local garden supply store had stocked. All in all, I am completely happy so far with this product. Each of the 56 lights has arrived in working condition out of box. The packaging is absolutely spot on and I'm even saving the boxes and packing materials in case I move. *UPDATE* As of 7/26/15 this will be my last yield update. I have found that these LED grow lights are not sufficient for vegetative growth on their own. That said, in the past I would use six (6) 1000w MH light setups to veg my plants. I now use three (3) 1000w MH setups and twelve (12) of these LED lights for vegetating. From my observations these LED lights just don't put out enough "cool" or "blue" light on their own to vegetate plants to their utmost potential. These lights will work on their own for vegetating plants, just not as well as MH bulbs or with MH bulbs. Although I have not tried it yet, I'm sure "cool" florescent T5 or T8 bulbs would also work better to use during the vegetative growth stage. See wiki links below. However! These lights work AMAZINGLY for the flowering/blooming stage of plant growth! Either on their own or in tandem with 1000w HPS light setups these lights will produce high quality end product with acceptable yields. My plants yield on average 80-90 grams per plant each cycle. I vegetate for three (3) weeks using 1000w MH lights with these LED lights mixed in as supplemental lighting. Then I flower for seven (7) weeks using only these LED lights. I have tried using just these lights through an entire grow cycle. I have tried using only 1000w MH/HPS light setups through an entire grow cycle, but neither produce as well in both quality or quantity when compared to the method I have listed in the two paragraphs above this one. I suggest doing some research on your own beyond my findings to find a setup that works best for your growing situation. And experiment a little yourself as well! Below are two links to Wikipedia that I found extremely helpful in learning about the variety of grow lights. This link goes over every type of indoor grow light and explains the advantages and weaknesses of each: [...] This link goes over the bandwidths of light plants use in the process of photosynthesis, also know as PAR: [...] Hope all that helps! I will update this review again if I feel the need to. It took a bit of experimentation, but as of now though I am completely happy with how these lights have worked out for me. Five Stars.

As a long-term devotee of LED lighting, I am extremely happy with the Galaxyhydro 300w light. No, it is not top-of-the-line compared to some other lights I own but is very well-made, seems pretty sturdy and is very impressive for what it is. There is no doubt that this light grows plants. So little heat it makes growing plants in tents and small spaces a breeze. At the price point for this unit is undoubtedly a great value. Whether it matches my other lights in terms of flowering plants remains to be seen in tests. However I would heartily recommend it to all those who labor under limited budgets. And I can say without reservation that plants love it for the vegative growth phase. Overall an extremely good value and was dispatched fast with rapid arrival in perfect order. Well-recommended! An update: After running my Galaxyhydro lights for several weeks now, I can say with assurance that these leds, ( both 600 watt and 300 watt), are equal to or exceed the specs. of my four-times-as -expensive US leds light units. The seller had my lights delivered within three days of placing my order and were attentive & followed-up with inquiries afterwards to make sure all was well on my end. Excellent service. As a professional grower I endorse the Galaxy hydro led grow lights without reservation. I've also purchased a 1200watt COB grow light for my next expansion. Can't wait to review this unit in the near future. In simply practical terms, the Galaxyhydro line meets the grow challenges of today at a reasonable cost. The classic "no-brainer" of all the choices I must make on a daily basis. And for those wondering if these work for the flower phase of their plants I say; " go for it". These lights are gems. UPDATE AFTER ONE YEAR IN SERVICE. It has been 5 complete cycles using 10 300 watt lights. Results have been consistently excellent. 2 or even 3 units work wonders in 3x3 for flower. 1 unit is more than sufficient for vegative in 3x3. Not 1 of.my 10 units have failed in the past year to date. I handle all my equipment carefully and never in haste, so if these units are destined for rough use or thrown around, you could break them. But the Galaxyhydro 300's are simply amazing for the price. I use a few 300's alongside larger much more costly units and almost hate to admit the difference between plants under the different "big" brands and my little Galaxyhydro lights is 5% at most. And I've been doing this work for decades. It's impressive. When I bought my first 6 last year I felt like a chump at first, not believing the 300's could really compete with the double/triple cost "11" & "12" spectrum lights already in use in the gardens. Was I relieved when my fears were proved baseless.. In any event, these lights are a great product, priced really fairly for both the budget conscience & the astute professional. A workhorse in my gardens.

I just got my light setup in my grow tent where I have a variety of vegetable seedlings growing. The light itself seems great so far and I will update this if anything changes. It's very bright and puts down plenty of light. The cable clips are extremely solid and I like the switch to be able to turn this off without affecting my timer. Two things surprised me the most though and the first one is the fan noise. I didn't expect this to be quiet but I was hoping it would be a bit quieter than it is. I have my grow tent setup in my living room right now - it will move to the basement before long probably sooner now because of the noise. Anyway, the fans spin very loudly/fast. It would be nice if there were a speed control for the fans as I'm pretty sure they don't need to spin this fast for cooling of these LEDs. The second thing I noticed was that the switch didn't affect the plug that you can use to daisy chain multiple units together. This seems like a pretty big design flaw. I love the fact that I can turn off the light with the switch because I hate having to unplug it from the timer or unplug my timer just to do some lights off work in the tent. It would make sense to me to have it control the plug as well, at least in my case. I can see a use case where you wouldn't want it to control all the rest of the lights daisy chained up but for me and what I'm doing this really would be a nice feature to have. I'd really give this thing 4.5 stars because everything else about it seems really good. I will update this in a few weeks to let everyone know how my plants are growing.