VIPARSPECTRA KS3000 LED Grow Light 320 watt with Samsung LM301H Diodes, Uniform PPFD Dimmable Daisy Chain 4 Bars Grow Lights for Indoor Plants Full Spectrum Plant Growing Lamps in 3x3 Grow Tent

Tight fit in my ipower 3x3 love the long wires to feed the light and power supply, heat is about the same as my viper p2000 different air flow with bar style light than the big board style still trying to dial in my VPD now can’t wait to see plant flourish , I resurched this light it has the best power per watt to led par output 30% better coverage , all the others show to much parr in the middle and weak corners , my other viper light is 200 watts p2000 and works wonderfully I got like 9 ounce out of 2 plants with 200 watts viper spectra is the best value hand down, I waited and watched the price of this light go up and down for a year then it dropped below 200 to 189 so I jumped on it very nice light big beautiful power supply with long cord love this light company very good stuff

I have purchased 2 of the KS3000 light fixtures and I am thoroughly pleased with the performance and quality of these lights. The dimming ability is very nice so you can use the proper amount of light needed during the growth of plants. I was really pleased with how the company stands behind their products. One of the units I have starting having strobing issues with the driver after a little over a year from purchase. After some troubleshooting help with their tech staff, it was determined to be a slight defect with that driver. The company sent a replacement driver to me without pro-rating and charging me for the time I have used the product. They are an outstanding company, I will certainly purchase more of their products and tell my friends as well. They are certainly a top notch company.

(Purchased 2022)Great light, wonderful price! Even light coverage. I use it for moms and clones in my 3x3 tent. That said I have also germinated multiple seeds from cannabis to peppers and tomatoes. I have also used it to grow from seed to flower and I have to say it does a great job for cannabis in flower compares right there with my nextlight mega pro led I use in my 5x5 for flowering. ✌🏻💚MOFOS

Highly effective! This light is fantastic. My previous light came with my 3x3 tent (vivosun) which is the folding gimmicky light that has adjustable side panels that completely suck. This light is a solid choice for anyone using a 3x3 tent or a 5x5 (KS5000) Very bright, and I have no burn issues whatsoever. I like that the driver is detachable and can be stored outside of the tent which keeps the temps down. There’s a lot of nice lights out there and I put this light in the elite category. MarsHydro makes a nice light that is very similar, but this light just feels like quality and if you decide on one, you’ll see what I mean.

This is my second light as I am upgrading my 4x4 to a 5x10ft tent. These lights are awesome for home grow tents. They fit the bill and going home from a commercial grow with CO2 to my homegrow tents without CO2, these are perfect and fill the tent from corner to corner on a 4 x 4, but they will flower a 5 x 5 as I flower them on 75% power max and get a nice yield with 4x4 and 100% is overkill without co2 or a higher ceiling, 5x5 area/tent. These are awesome for the price.

This isn't the absolute brightest light you can get, but at this price you are not going to beat this. Plenty of light for all phases and the panel style has really good light uniformity across a 4x4 space. With that said, this is not going to replace a 1000 watt HPS. You are pulling 500 watts from the wall with this light, and you'll get around half the PAR that a good quality HPS can do; However, you will get the same PAR at the corners as an HPS due to the better uniformity of the panel design, which is becoming standard in LED lights. You also will not have the heat management you would with an HPS. I would call this a very solid starter or budget light. You will get very good results using it. If you're looking to get the same light output as an HPS, be prepared to spend around 3 - 5 times this much but make sure you are running everything that can take advantage of that kind of light (C02, etc...). For me, I have a larger tent with a couple higher end lights and I just didn't want to break the bank to fill out the space. I have good overlapping light from the space and this light does everything I need it to do.

Great light, has nice increments for light strength. I am growing the best tomatoes on the block with this light.

If this type of light is in your budget and you need a lighted area for several plant than this is an awesome quality product. I have tried a few other and this one’s build and diodes are for superior. 3 year warranty and diodes are not pushed to maximum to burn out like others. These are Samsung lm301h diodes designed for horticulture and this is a company that is a genuine reseller of Samsung diodes. Super simple to install it only takes just a few minutes. I love that the driver is separate and is super quality too. The driver can be mounted or hung several feet away if you choose to offset heat if that’s a problem for you. The appearance finish is sleek and smooth and is made of aluminum construction to help distribute heat better. I’m not a professional light reviewer but out of the 3 led grow lights I’ve tested this one is far superior. My second choice is mars hydro lighting with Samsung diodes but is slightly more expensive.