2025 New Version MARS HYDRO FC-E3000 300Watt LED Grow Light 3X3ft Full Spectrum Grow Light Bar Smart Dimmable

I purchased this product 13 months ago. BEST LIGHT EVER ! But the light stopped working suddenly. With simply a hand full of emails and pics sent to prove its condition, I was only charged $20 (shipping fee) for a replacement power supply! In less than 1 week I had my replacement running perfectly again! OUTSTANDING CUSTOMER SERVICE!!!! Read more

I recently added the 2025 version of the MARS HYDRO FC-E3000 (300 Watt) to our setup, and the results have been impressive. While we are long-time fans of other popular brands, this light has proven to be a fantastic, slightly more affordable alternative that doesn’t sacrifice quality. The "Win": Performance & Setup Instant Results: Our plants responded almost immediately. We saw noticeable growth spurts within the first few days of switching to this full-spectrum bar light. Tent Compatibility: It fits and works perfectly inside our Vivosun grow tent. The integration was seamless, making it a great option if you’re looking to mix and match high-quality gear. Build & Packaging: It arrived very well packaged—no bent bars or damaged LEDs. The dimming feature is smooth and easy to adjust for different growth stages. Value for Money Rating: 10/10 At $179.99, you are getting a 300W light with a high PPE (2.8 umol/J) for significantly less than some other "name brands." It feels like a professional-grade light without the professional-grade price tag. The Verdict If you want the power of a bar-style LED grow light but want to save a bit of money compared to Vivosun or other high-end models, this is it. It’s powerful, cool-running, and highly effective. We will definitely consider more Mars Hydro gear for future expansions. Read more

I posted a very long review that didn't get approved, so I'm going to make it short and sweet. This light draws 800w +/- 5% but the driver consumes 70w. So, 730w of LED power is what you're actually putting out. That being said, I have never had happier plants. I went from having an extremely hot tent with a 1,200w HPS to having a 5x5x6.5 tent that never cracks 85°, even with the exhaust fan turned to the minimum. The LED puts out less actual ePPF than my HPS but it's much wider spectrum and MUCH more evenly spread out. My entire tent at 12" doesn't get below 823ePPFD at the minimum. The average at 18" is 1,064ePPFD according to my quantum sensor, and 1,321 ePPFD average at 12". However I like to keep it at 18" so that the light spread it more even, and I don't want to burn my plants as I am not using supplemental CO2. Anyways, the driver thing was explained to me in an email from Mars. I got this grow light on sale for $560, so there's no way I could ever get a better deal on a light like this. My only gripe is that I bought it RIGHT before they put out the FC-E1000w which I would have rather purchased. Oh well, this one is still good for my purposes! If I decide to supplement CO2, I'll lower the light. My power use immediately dropped very significantly just from having this light for 2 weeks out of the power billing period. I'm glad, because power rates in my area are about to go from $0.1205/kWh to $0.24175/kWh at the start of January. I can always lower the light and dim it to cut energy consumption if necessary. I give the light a 5/5 in all categories, but like all companies; MarsHydro overstates the performance of their product. At 12" I only get a total of 1,933 ePPF and they advertise 2,100 PPF Which it seems is never the case in any reviews. As long as you're cool with that, this light grows plants like no fixture I have ever used. The 8 100w blurples from Marshydro that I was using 2016-2019 couldn't get anywhere near this performance or efficiency. Also, the efficiency is much lower than claimed by Marshydro. I get 2.416 EPPF/J. 1933/800=2.416. If we go by the output wattage, I get 2.65ePPF/J, which is less than the efficiency of 2.8 PPD/J that they advertise. All in all, I don't regret my purchase, I will save around $2,000 in the next year on my power bill because of it, and my flowers have never grown so densely and happily. Great job Marshydro, just be more realistic in your ads. Update 1/15/2023: This light has saved me $100 on my power bill compared to a 1200W HPS. My usage statement on November 13 was 1145kWh consumed, December was 13th statement was 1209kWh, This month's statement shows 687kWh consumed. The light will pay for itself in 4 more months. Then we're just saving money. Read more

The light seems very sturdy and well made. The only issue I had was the dimmer. Always seems to be such a cheap switch on otherwise great lights from Mars Hydro. First light had to be exchanged for one that worked. Amazon made it right quickly though with a replacement light sent immediately. Have had this issue before on different model lights from the same manufacturer. The new driver and dimmer worked beautifully and the light can go from 0 to 100% power. Do love the low heat output, especially with the driver mounted up high in the exhaust fan air stream. Getting well over 1000 par readings at 10 inches from the canopy. Buds responded well to the new light. Looking forward to using on a full run seed to flower. Ill update the review in a few months after and show the results. Coverage is perfect for my 4x4 closet. Also, do make sure to alternate between A and B bars when assembling the light. They only have one UV led diode per bar. A and B bars have them at opposite ends for even coverage. Update #1 Light has done great in veg. Had an unexpected autoflower in the bunch as well. It’s blooming nice and dense under the light at 75% power and 18 inches below. I added a picture of the veg setup. Will give one more update after flowering. So far still absolutely a 5 star light. Last Update This light has preformed absolutely beautifully. Clones grow vigorously and buds speak for themselves. Recommend this light to anyone interested. Read more