LED Grow Light Q2000 3x3ft 4x4ft Dimmable LED Grow Lights with IR, High PPFD Upgraded Full Spectrum LED Growing Lamp with 648Pcs LEDs Commercial Grow Lights with size 22.6"x22.6"

Best indoor low temp light you can get. Sure it's not super bright but it makes it up in longevity, temp, build and par values. Worth every penny.Side Note: The wires can be heavy so I suggest adding a rope to hold up the weight and balance out the light.

Aww Man when I got the light, I love that it was well built but lightweight. When I turned it on I was amazed how bright it is. O and it's water resistant. For the money. Hands down this light is well worth it and there isn't a doubt in my mind it can handle greater than manufactory requires. I'm glad I took the risk. One of few times manufacturers are telling the truth about the product......

I’ve been using these for years with great results. They put off no heat so they’re perfect for the warmer indoor months. Sometimes in the winter, I’ll actually have to supplement them with an additional light. That’s how cool they run.

The media could not be loaded.  My plants really enjoy this light so If they are happy I am happy.First and above all this light runs super cool I've used alot of lights and this is the only one that has had a significant impact on the heat in my tents dropping them by more than 8 degrees in comparison to other 200 watt boards.Because of the design of the light it allows the air to flow through and around it allowing your fans to do the hard part of pushing the very SLIGHT heat that comes off the diodes away from the grow area and up.That brings me to the second major advantage of this master piece.Because of the way the light dissipates heat I'm able to get this light to within 6" of my plants with no signs of heat and or light stress that you will see with many other brands of lights to me this is a advantage because it means I can leave some of the lowers I would normally trim off, there by increasing my over all yeilds.Don't be tricked by this light put next to other lights of the same wattage or even lower wattage it doesn't appear very bright in my opinion this was a mastermind move on the manufacturers part as brightness (illumination) has absolutely nothing to do with how plants perceive light and with out that intensity your plants run very little risk of light stress when you set your par levels.I have attached the par test taken off this light while it's not the best quality the numbers are true and taken with a 500 series meter with that said if you watch the video you will see numbers above 1,000 unless your running co2 with any light your plants simply stop absorbing the par at 950 so while you can run the light very low to the plants it's not a advantage without giving the plants everything they need to do so.As of this writing I have used the light in mid to late stage flowering to allow the bulk up and was highly impressed with the yeild off the 4 plants I bulked under the light I also have this light in a second flower tent that has been in full flower under the light and the stretch was minimal using the proper par vs growth stage and those plants are fat and solid and frosting nicely with weeks yet to go.Used in the proper sized recommend environment and at the proper height's this light will make your plants very happy and you will be very happy with the fruits of your hard work.Lumens are for humans par is for plants if you want to paint a picture use a lux meter if you want to grow some flowers use a par meter.

In 5 days of use, the growth of the blooming stage was visibly noticeable. Some growth appeared to have doubled in size. Exchanged my high priced 400 watt LED for 2 of these. Novice grower here but what I did notice with my 400w LED is that I could not use all that power as it would "burn" the growth directly underneath. I was only able to use slightly more than 1/2 of the power available to avoid that. I tried raising the light but then I noticed the plants on the outside edge were growing at a slower rate than those directly underneath. My thought was that 2-200 watt lights would give me better light distribution without plant burn while keeping my total watts in the range I wanted. I was absolutely correct. I found these lights while searching Amazon while trying to keep my "exchange" budget the same. In the end, I was actually able to put a few bucks back into the bank. These lights have much higher output in the 660 to740nm red light spectrum than most LED's on the market right now.. Be sure to get LED protection glasses as you will hurt your eyes from the high red spectrum range even through light deflection. Flowering greatly improved since installation. I may be a novice but I do understand the power is useless if it cannot reach all areas of your grow evenly. Don't be afraid of the assembly, very easy and took less 10 minutes. Both lights tested slightly more than 200 watts, 203 and 205 to be exact. The dimmer function works great although 100 watts was achieved at slightly more than 50% per the dimmer setting. I like this company, hope they continue to produce more products. Would be nice if they included LED eye protection glasses with each light but that us a different conversation. My only complaint is that you must find a way to keep the large 4 connection cable from lying on the LED boards and driver. I came up with a solution for that and will try to speak with the company as I have a couple of ideas for this issue. Certainly not even close to being a deal-breaker though. The light runs very cool compared to my first LED and I think that the separation/distribution of the 4 smaller LED boards as opposed to 1 large LED board design has a major part in this. The driver has never become too hot to touch. Using 2 of these in a 5x5. Completely happy and I know other growers are paying big bucks for the "Name-brand", mainstream promoted lights and are likely dealing with the same issues I encountered. These are great lights at a very reasonable price. Highly recommend. Amazing deal for the price point.

Literally no heat from this unit.Dimmer switch is a key item.Will have you with some dense nugs.Performance is amazing for the price.Definitely getting more.

First one I ordered was missing the protective IP54 clear coating on just one of the four light strips. Contacted the Seller and for the life of me couldn't get the person to understand the issue. How do you photograph a clear coating or lack of. They tried to tell me it doesnt need it not understanding. That clear coating is there to keep moisture from making contact with the led connections. Anyways I returned the one without the coating and ordered a new one. This one is perfect with proper coating on all panels. Other than that hiccup the light is great! Love the coverage its fantastic, brighter than my SF1000d.

Very quick shipping, well packed.Great light for the cost.Full spectrum performs excellent in my 3x3 tent.Not alot of heat at all. ( which for me is a downfall since my basement is cool and the lights usually add to my heating.) Lol but usually for anyone else a very good feature.Very light weight and dimmable with its own dimming knob unlike other lights that need screw drivers to dim them.Very nice locking connections and apparently it is able to daisy chain together with other lights.I would have liked a longer power cord because I plug in all my gear outside the tent.I would recommend good value for money.

I am very happy with my QB2000 so far! I ordered it only a few days ago and it’s already here! It came with everything needed to assemble and hang and is extremely bright compared to my old LED. I’m expecting to see a big difference in my yield this grow! Im very impressed considering the small price tag on this light compared to other LEDs and was quite impressed with the quick response from customer service when I was inquiring about the product. Thank you Sunraise! I’m looking forward to seeing my results!

The media could not be loaded.  Great light says it's good for a 4x4 in veg an 3x3 in flower and find it does great in my 3x3 tent only wish they didn't over charge you on here got the light an went to there website an found this same light for under two hundred