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A black AC Infinity grow light sits on a patterned mat.
UIS Ionboard S33 LED grow light specs & dimensions: 18.5" square, 9.06" wide, 1.57" thick.
AC Infinity dimmable LED grow light controller with precision digital dimming and aluminum body.
AC Infinity Ecosystem diagram showing a controller connecting to fans, grow lights, and a control plug for automation.
AC Infinity Ionboard S33 240W LED grow light inside a grow tent with plants.
AC Infinity Ionboard S33 LED grow light coverage map with PAR readings at different heights.
Samsung LM301H LEDs on a grow light panel with spectrum details.
A black AC Infinity grow light sits on a patterned mat.
UIS Ionboard S33 LED grow light specs & dimensions: 18.5
AC Infinity dimmable LED grow light controller with precision digital dimming and aluminum body.
AC Infinity Ecosystem diagram showing a controller connecting to fans, grow lights, and a control plug for automation.
AC Infinity Ionboard S33 240W LED grow light inside a grow tent with plants.
AC Infinity Ionboard S33 LED grow light coverage map with PAR readings at different heights.
Samsung LM301H LEDs on a grow light panel with spectrum details.

AC Infinity Ionboard S33 260W Full Spectrum LED Grow Light

Official AC Infinity Dealer Model: AC-IBS33
$299.00 USD$269.00 USD$299.00 USD
 $299.00 USD
starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
Looking to finance equipment under your corporation? Learn more about Business Financing
  • Powerful 1702 PPFD output with 240W total power draw.
  • Utilizes 640 Samsung LM301B LEDs for deep canopy penetration.
  • Aluminum unibody construction rated IP65 against dust and moisture.
  • 2-year warranty covering manufacturing defects and component failures
  • View More Details
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  • Over 50,000 CustomersTrust Trimleaf
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THROUGH THE Cultivator's LENS Highlights

  • You are upgrading to a high-output light because your existing fixture fails to reach the edges of your 3x3 footprint.
  • You are consolidating your equipment into a single automated hub because managing separate timers for every device creates constant cable clutter.

  • The 20 percent dimmer increments are helpful when you need to match light intensity to a specific growth phase.
  • The IP65-rated unibody frame helps protect against the moisture and dust common in grow tent environments.

  • Growers who integrated their lighting with the smart controller report they stopped worrying about manual adjustments.
  • Users report that the even light distribution across their 3x3 space has led to more consistent growth canopy results.

AC Infinity Ionboard S33 260W Full Spectrum LED Grow Light

A 3×3 ft. tent needs enough intensity to drive heavy flowers, without the hotspots and heat of a blurple panel or HID. The AC Infinity Ionboard S33 spreads 640 algorithmically spaced Samsung LM301H diodes across an 18.5 × 18.5 in. board, delivering 1788 PPFD at 260W. That gives even coverage from edge to edge of a 3×3 grow tent.

Warm 3000K and cool 6500K white diodes, plus 660 nm red and 730 nm far-red, give the S33 a full spectrum for germination, veg and flower at 2.7 µmol/J efficiency. The black anodized aluminum unibody board cools passively with no fans or noise, and its IP65 seal keeps out moisture and dust in humid tents. The separate IB-240 driver has a dimmer knob that sets intensity from 20% to 100% in 20% steps.

Turn the knob to UIS and the S33 hands control to an AC Infinity smart controller such as the AC Infinity Smart Controller 69 Pro (sold separately). That adds scheduling, automation and Wi-Fi app control as part of the AC Infinity ecosystem.

Features

AC Infinity Ionboard S33 260W full spectrum LED grow light
AC Infinity Ionboard S33 integrated into a grow tent ecosystem
AC Infinity Ionboard S33 LED grow light detail
AC Infinity Ionboard S33 showing smart controller compatibility
💡
640 Samsung LM301H Diodes

Full-spectrum white, 660 nm red, and 730 nm far-red at 2.7 µmol/J efficiency.

📏
Even 3×3 Coverage

Algorithmically spaced diodes deliver 1788 PPFD across the canopy without hotspots.

🎚️
Dimmer Knob Driver

Set intensity from 20% to 100% in 20% steps to match each growth stage.

📱
UIS™ Compatible

Pair with a UIS smart controller for schedules, automation, and Wi-Fi app control.

❄️
Silent Passive Cooling

Black anodized aluminum board dissipates heat with no fans or noise.

💧
IP65 Unibody Build

Sealed against moisture and dust for humid tents, rated for 50,000 hours.

What's Included

  • 1x Ionboard S33 LED Grow Light
  • 1x LED Driver
  • 2x Rope Clip Hangers
  • 2x Stainless Steel Hanging Hooks
  • 1x UIS M-M Cord
  • 4x Hook and Loop Ties
  • 1x Wire Tie Set

Specifications

Specification Value
Light Dimensions 18.50 × 18.50 in. (47.0 × 47.0 cm)
LED Board Thickness 0.43 in. (1.1 cm)
Driver Dimensions 9.06 × 1.57 in. (23.0 × 4.0 cm)
Coverage 3 × 3 ft.
Diodes Samsung LM301H
Chip Count 640
Spectrum 660 nm, 730 nm, 3000K, 6500K
Efficiency 2.7 µmol/J
PPFD 1788 µmol/m²/s
Wattage 260 W
LED Driver AC Infinity IB-240
Controller Dimmer Knob (20–100%, 20% Steps)
Voltage 100–277V AC
Frequency 50/60 Hz
Amps 2.30 A @ 120V | 1.15 A @ 240V | 0.97 A @ 277V
Power Connector Type US Plug (NEMA 1-15 Type-A)
Waterproof Rating IP65
Operating Humidity 35 to 85% RH
Operating Temperature 32 to 140°F
Life Expectancy 50,000 Hours

Warranty

The AC Infinity Ionboard S33 is covered by a 2-year limited manufacturer warranty from the original date of purchase.

Frequently Asked Questions

What size grow tent is the Ionboard S33 best for? +

The Ionboard S33 is built for a 3 × 3 ft. footprint, a direct match for the AC Infinity CLOUDLAB 733 grow tent. For 4 × 4 ft. spaces, step up to the AC Infinity Ionboard S44.

How do I hang the Ionboard S33? +

Insert the included steel hooks into the slotted end caps, then slide one of your tent's support poles under the hooks and set the pole back into the frame. Two people are recommended for this step. You can also hang it from the included rope clip hangers for adjustable height.

How high should I hang the Ionboard S33 above my plants? +

AC Infinity's starter guide recommends about 1.5 ft. above the canopy, with intensity at 40% for seedlings, 80% for veg and 100% for flower. If you prefer a fixed position, hang it at peak height and run it at 100% throughout. Watch your plants' response and adjust as needed.

How does the dimmer knob work? +

The knob on the LED driver sets brightness from 20% to 100% in 20% steps. Turning it to the UIS position switches the light off, or passes control to a connected AC Infinity smart controller for scheduling and automation.

What does the IP65 rating mean for a grow light? +

IP65 means the board is sealed against dust and protected from low-pressure water jets from any direction. That makes the Ionboard S33 well suited to humid grow tents where condensation and misting are common.

What is the actual power draw? +

The Ionboard S33 draws 260W at full brightness: 2.30 A at 120V, 1.15 A at 240V and 0.97 A at 277V. Dimming with the knob or a smart controller reduces power use for seedlings and veg.

How can I get the best results from my AC Infinity setup? +

Pair the Ionboard S33 with an inline fan, carbon filter and UIS controller so lighting, airflow and climate work together. For a detailed walkthrough, check out our in-depth guide on AC Infinity setups.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

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