Search  for anything...

AC Infinity IONBOARD S33, LED Grow Light Board with Samsung LM301H Diodes, Deeper Penetration Full Spectrum Lighting, for Veg Bloom Indoor Plants in Grow Tents Greenhouses (3x3)

  • Based on 965 reviews
Condition: New
Checking for the best price...
$269.00 Why this price?
Save $130.99 was $399.99

Buy Now, Pay Later


As low as $44.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: 15 left in stock
Fulfilled by Amazon

Arrives Thursday, Aug 7
Order within 18 hours and 20 minutes
Available payment plans shown during checkout

Color: White


Size: 3x3


Features

  • Dimmable LED grow light designed with an optimized spectrum and diode positioning, to maximize plant yields.
  • Utilizes full-spectrum Samsung LM301H LEDs to achieve powerful lighting optimized for all plant stages.
  • Algorithmically positioned diodes create the most uniform PAR map and the deepest canopy penetration.
  • Dimmer enables 0 to 100% brightness. Can connect with our smart controllers to access grow cycles, scheduling, and app.
  • Constructed on a unibody aluminum board and IP-65 rated for grow environments with higher humidity and heat.

Color: White


Shape: Rectangular prism with rounded corners


Material: Aluminum


Finish Type: Silver Metallic


Light Source Type: LED


Color: White


Shape: Rectangular prism with rounded corners


Material: Aluminum


Finish Type: Silver Metallic


Light Source Type: LED


Shade Material: Aluminum


Power Source: Corded Electric


Brand: AC Infinity


Style: Modern


Voltage: 120 Volts


Brightness: 301 Lumen


Maximum Compatible Light Source Wattage: 2.4E+2 Watts


Light Source Wattage: 2.4E+2 Watts


Mounting Type: Inside Mount


Bulb Features: Dimmable, Remote Control Compatible


Color Rendering Index: 95


Number of Light Sources: 1


Are Batteries Included: No


Product Dimensions: 21"L x 21"W x 4"H


Beam Angle: 1.2E+2 Degrees


Manufacturer: AC Infinity


UPC: 819137022539


Item Weight: 12.32 pounds


Country of Origin: China


Item model number: AC-IBS33


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • You wont need a tent heater.... Bring your sunglasses
Color: White Size: 4x4
These 4x4 lights are very warm. Which raised the temperature in my tent by 10 degrees. However, I guess I dont have to buy a tent heater since its at 76 degrees now, instead of 66 like it was..... Awesome! They are very bright, very very bright (running on 80 percent). So bright, my plants are mad now because they were used to less bright lights. So, I'm hoping they perk back up asap. Hopefully these lights last a long, long time for the price, but im nervous since many of the reviews claim a 9-12 month life span before failure due to overheating.. If this is the case, hopefully AC Infinity don't mind giving me new lights every 9 months for the rest of my life. Could present a problem though, since I dont really have any backup lights laying around..... Fingers crossed. As long as they last at least 20 years, I would say they are great. 😆 ... show more
Reviewed in the United States on March 8, 2025 by Ed S.

  • Good light
Color: White Size: 2x4
Nice light works good works great with controller 69
Reviewed in the United States on June 14, 2025 by BullSkinner

  • Excellent all around
Color: White Size: 2x4
I'm impressed with the quality of the light board and the accompanying manuals and accessories. The light output is excellent and easily controlled with the adjustment knob.
Reviewed in the United States on April 5, 2025 by Bill M

  • Bad light.
Color: White Size: 3x3
Love everything about ac affinity really good product. I have bought a lot of stuff from them but my light went out and did not know still had warranty until after the warranty so I lost all my grow because had no light. I only got half the hours out of it. It would of been nice to get a replacement out of it since only got half the life out of it. I have bought 3 lights and tons of other stuff from them.But I still love there products! ... show more
Reviewed in the United States on February 20, 2025 by Tad Derleth

  • It's ac Infinity, it's great!
Color: White Size: 2x2
As with all my other ac Infinity products this light is well made. If you've ever handled the cheap LED lights before and then you get your hands on this you can just tell it's made with high quality material. The description says they are LM301 B diodes but the box it comes it says LM301 H. I don't know if thats a typo but if not that's awsome. This light would take care of a 2x2 space well but I'm using it along with a S24 in a 2x4 and it's killing it. The light gets a bit hot to the touch but I'm not have heat issues in the tent. I definitely recommend this light for a 2x2 area or adding it in to supplement other lights in a lager space. ... show more
Reviewed in the United States on January 16, 2024 by zach smallwood

  • solid light
Color: White Size: 2x2
it's my first grow light. I used it to start seeds to be transplanted to patio pots because of short growing season. great quality, i hope to get some additional use in our off growing season. I'd buy again or consider a larger version.
Reviewed in the United States on March 6, 2025 by Jo

  • Updated Review: AC Infinity came through with a replacement
Color: White Size: 3x3
Update: 7/25 Second light they gave me is still going strong. I keep a fan on the driver to keep it cooler. I hope it helps with the longevity. Update 5/23: After about 22 days of waiting, AC Infinity came through with a new light for me. I hope this one lasts longer than 11 months like the first one. Just glad to finally have some decent light again for my plants. Update: My light died in less than a year after use. It's my only grow light and I took great care of it. I never dropped it, never bumped it, never damaged it at all. It just died. The light didn't even last 3 grows. So I contacted AC Infinity for a replacement because it falls under the 2 year warranty. They seemed very helpful, they said they shipped out a replacement for me, I even sent my old one back immediately. It's now been two weeks since I contacted them and the tracking number for my new light has still not been updated. They keep giving me the run around and say my new light has been shipped, but today I called UPS and they say they don't have the package in their possession. Now I don't even know what is going on. AC Infinity took my old light and have not shipped out my replacement, but at the same time they are claiming they have. I'm starting to feel like I got ripped off big time. ------------------------------------------------------------------------------------------------------------------------- So I've been using two older box-style LED grow lights in my tent for the past couple years. You know the ones with the fans built in? In the summer time, even with proper ventilation, my tent was regularly over 100 degrees with both lights running. I've only had the AC Infinity Ionboard for a few days now and I can tell we're going to be good friends. The temp in my tent with the Ionboard running at full blast is 82 degrees. That's not to say the driver doesn't get hot, but the overall tent temperature is perfect. The S33 model is stellar for my 3x3. I used to have to pull about 700w from the wall of LED lights to cover the entire tent area, now I'm only using 240w. The light dispersion the Ionboard is incredible. Almost every leaf is covered. I know I've only had this light for a few days, so it's more of a first impression review, but I just felt people should know how well the Ionboard keeps my tent cool. The AC Infinity build quality is impressive at this price point, very happy with my purchase. ... show more
Reviewed in the United States on June 14, 2022 by Sharkbite Sharkbite

  • I am impressed
Color: White Size: 2x2
It is the most efficient light to date for me, so I have great hopes it will last a long time. I am impressed with how cool it is, apparently 20k lumens at first blush. Great color rendering. Dimmer 80,60,40,and 20% barely any heat at 60% and under. Comfortable to drink and hold coffee cup warmth on high. 2000 lux at 5'8' while a 320w chm is 3000 lux. It would be a more flexible, more uses, if it could dim to an additional 5% and 1%. At 20% it is too bright to put on a timer to wake up with and use in the bedroom. I need 80k lumens to work with, so it is too dim to take to work. But it is a good house chore light. It does come with one plastic led protector, but needs several and option to buy replacement, since the leds are exposed, making the light unsuited for harsh conditions. Hopefully it lasts longer than the mere months of usage that all other 100w+lights have gotten before dying. ... show more
Reviewed in the United States on March 8, 2023 by Garden

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...