








🌱 Grow smarter, not harder — light up your indoor jungle with precision and power!
The FARMLITE QS-BAR4 is a 240W full spectrum LED grow light featuring 1056 Samsung diodes, designed for 4x4ft plant coverage. It supports daisy-chain dimming for up to 25 units, offers adjustable height mounting, and includes a detachable, IP67 waterproof power supply. Lightweight aluminum construction ensures efficient heat dissipation and silent operation, making it ideal for professional indoor gardening and high-yield plant growth.










| Manufacturer | FARMLITE |
| Item model number | QS-BAR4 |
| Product Dimensions | 58 x 58 x 4.5 cm; 3 kg |
| ASIN | B0B81Z28HB |
A**Z
Muy funcional
D**R
Just installed my new 320w Farmlite and have to say I'm very happy with this purchase. It covers my 4x4 tent perfectly and gives all my flowers plenty of light. Easy to put together and easy to hang. The only dislike is the amount of heat that they produce. Had to make a couple of adjustments inside the tent to compensate for the 8° temperature gain but it's nothing a fan can't take care of. Well made light at a decent price.
J**E
ill have to update after ive had the chance to grow something with these. but i have it in the tent and i"m excited to see how this compares to a my Vivosun boards in the other tent. what i like: Amazing price 130 cdn good PAR rating (for sure not what is advertised but within standards across other light makers) solid construction good coverage easy set up good control growing : Update : I’ve had a few grows on this now and it’s does a pretty good job reasonable growth and coverage. It 100% works and pretty well for 230w. Now negatives: it gets very hot at about 90% power and above. Last measurement at 100 power came in at 39c which indicated a waste of efficiency or power. So at the price it was worth it but if efficiency at the wall is your goal there might be better options. At 130 I’d buy again but if it’s closer to 200 there are more efficient models out there where you would likely make back the money you saved on cheaper model at the wall. I’m going to keep my eye on Farmlite I think there is potential.
T**P
More than satisfied with this light and it hooked up seamlessly to my spider Farmer ggs controller
M**N
Update: been almost a month, it's been working pretty well but I think it's going to have to go back. I would prefer a light with more red in the spectrum and less blue for flowering. The arrangements of the bars running along the short side makes it hard to add supplemental red led bars, unlike the MarsHydro FC4000 and Aglex M400, which has their light bars running along the long side, so you can easily drop a red light kit upgrade in unlike this light. --‐--------- I've been eyeing this light for more then a year now, it finally went on sale for $185 so I decided to finally buy it. This is a budget bar style led light with Samsung lm281b diodes. Even not on sale though, for $225 CAD, it's still one of the better deals for a light of this wattage. In comparison to the Aglex m400 and MarsHydro FC-E4000, this light is 40 to 50% cheaper. I couldn't find the answer to this anywhere, but it will fit all 4x2 based tents, there's 2 variations that people sell, one is 48"x24" and the other is actually 47"x23", this also fits the smaller 47"x23" tent. The build quality is decent, not great, a noticeable step down from brands like MarsHydro, Vivosun, Spiderfarmer etc but it still feels like a solid product once put together, but you can just tell that the grade of aluminum etc is not a premium grade. That is okay though because the price in comparison to other 320w lights, is a budget price. Spectrum seems a little too white/blue, making it not an optimized spectrum for flowering. I noticed on Farmlites newer bar lights listing on Amazon US, they've completely stopped using supplemental blue diodes and only reds, which makes this spectrum a little dated by 2025 standards. The heat from the light is about standard for a grow light, the driver feels like it runs warmer then my other name brand drivers but it could also possibly be in my head because I know the driver has been downgraded from Inventronics to Juson. I would say that this is ideal for a 4x2, it will not physically fit a 3x3, so the only other size it will physically fit in is a 4x4. The spread is absolutely perfect in my 4x2, it's lit from corner to corner. Don't be afraid of the high-wattage rating, say you were aiming for a 200w light for your tent, buying this light and dimming it down will actually be more efficient then running a 200w fixture at max power. Bonus is you get superior coverage from a smaller light, which also ups the efficiency/give you a better ROI on your grow. Why I did not give it 5 stars is because Farmlite has downgraded the components of this light from their earlier releases. This use to come with a high quality Inventronics driver (you can see it in their video in the listing), but now it's supplied with what seems like a generic brand which makes me worried about the longevity and efficiency of the product.
Trustpilot
5 days ago
2 months ago