Comparisons
Vivosun vs AC Infinity: Which to Buy?
AC Infinity and Vivosun both sell the full stack for a grow tent: tents, lights, inline fans, controllers, humidity devices and complete kits. Picking one usually means picking an ecosystem, because each brand’s controller works best with its own fans and devices. Here is how they compare on the evidence we could find.
Quick verdict
- Choose AC Infinity if you want the stronger standard tent frame, published static-pressure figures on its fans, and one controller ecosystem with a wide range of native devices.
- Choose Vivosun if you are building on a budget, want the longer warranty some Vivosun lights carry, or want three-door access from its Pro tent.
- Either way, compare complete baskets. TheOneGrow’s point is worth repeating: a lower kit price can mean a different light, fewer fans or a smaller bundle.
Inline fans
The only independent side-by-side we found is HWGrow’s 2021 comparison of 4-inch fans. Measured at the wall, the AC Infinity drew 28 W and the Vivosun 59 W. Run continuously for 90 days, that is 60.48 kWh against 127.44 kWh. The AC Infinity also looked stronger in a duct-sleeve test, which the reviewer notes is not an airflow measurement, and neither fan was tested through a filter on a calibrated bench. HWGrow quotes the current listings as 226 CFM and 28 W for the AC Infinity S4 and 190 CFM and 60 W for that Vivosun model.
Both brands now sell 6-inch EC fans with automatic controllers:
| AC Infinity CLOUDLINE T6 | Vivosun AeroZesh T6 | |
|---|---|---|
| Rated airflow | 425 CFM (current page); 402 CFM (older listings) | 408 CFM |
| Static pressure | 503 Pa | Not published that we found |
| Power | 70 W max | 35 W |
| Controller | Temperature, humidity and VPD triggers | 10 speeds, temperature/humidity probe |
| Independent test | None found | None found |
AC Infinity’s published static pressure is the main advantage on paper, since it tells you how well the fan holds airflow through a carbon filter. See our CLOUDLINE T6 review and the inline fan guide.
Tents
| AC Infinity CLOUDLAB 844 | Vivosun P448 Pro | Vivosun standard (in 4x4 kit) | |
|---|---|---|---|
| Size | 47.24×47.24×78.74 in | 48×48×80 in | 48×48×80 in |
| Canvas | Oxford (density not stated) | 2000D | 1680D |
| Poles | 22 mm steel | 22 mm steel | 16 mm |
| Rated load | 250 lb | 220 lb | 150 lb |
| Doors | Front | Front + 2 side doors | Front |
Vivosun’s Pro tent is close to the CLOUDLAB on frame specs; its standard tent, the one in its starter kits, is much lighter-duty. More in the best grow tents.
4x4 kits
AC Infinity’s 4x4 Advance kit pairs the CLOUDLAB 844 with a 400 W IONBOARD S44, a CLOUDLINE LITE 6 fan, a CONTROLLER 69 PRO and a CLOUDRAY S6 clip fan. Vivosun’s 4x4 starter kit pairs its standard tent with a 400 W LumaLight, an R6 fan (390 CFM, 45 dBA, 70 W), a GrowHub A22 controller with two outlets, and a 6-inch prefilter, but no clip fan. Full comparison, including Spider Farmer’s kit, in the best 4x4 grow tent kits.
Controllers and ecosystem
AC Infinity’s UIS ecosystem is broad. HappyHydro, a retailer that sells it, lists native shutter fans, floor and wall circulation fans, humidifiers with their own probes, several LED families and a portable air conditioner, all controlled directly rather than by switching an outlet.
Vivosun’s GrowHub range covers the same ground with its own devices: its 4x4 kit page recommends an AeroDrain D12 dehumidifier, AeroStream H19 humidifier, AeroLush C08 air conditioner and AeroFlux heater as add-ons, all managed in the Vivosun app.
Neither controls the other’s devices directly.
Warranty and support
| AC Infinity | Vivosun | |
|---|---|---|
| Standard term | 2 years from purchase | 2 years (most products) |
| Lights | IONFRAME: 5 years (bought from July 1, 2024) | Up to 5 years: LumaLight and AeroLight get 2 years plus a 3-year limited extension; VS manual lists 5 years for direct purchases |
| Tents | 2 years | 2 years (frame, poles, zippers, trays) |
| Filters, ducting | Not itemized; policy excludes consumables | No warranty (listed as consumables) |
| Where you bought matters | Claims go through the selling channel | Only Vivosun site and official Amazon, eBay and Walmart storefronts |
| Return shipping | Free prepaid labels for U.S. addresses | Customer may have to prepay |
Both ask for visible or physical damage to be reported within 30 days.
Bottom line
On the published evidence, AC Infinity is the safer pick for the parts that carry weight and move air: the frame and the fan. Vivosun is competitive on lights and warranty length for some models, and its Pro tent is a real step up from its kit tent. If Spider Farmer is also on your list, see Spider Farmer vs AC Infinity.
We did not test either brand’s equipment; see how we research.
FAQ
Is AC Infinity better than Vivosun?
On published evidence AC Infinity has the edge in tent frames (22 mm poles and 250 lb on the CLOUDLAB 844 versus 16 mm and 150 lb on Vivosun's standard kit tent) and in fan efficiency in the one independent side-by-side we found. Vivosun's Pro tents and newer EC fans narrow the gap, and its warranty runs longer on some lights.
Which has the better warranty, Vivosun or AC Infinity?
Both give most products 2 years. AC Infinity extends IONFRAME lights to 5 years; Vivosun gives LumaLight and AeroLight lights 2 years plus a 3-year limited extension, and its VS light manual lists 5 years for direct purchases. Vivosun treats filters and ducting as consumables with no warranty, and only handles claims for purchases from its own site or official storefronts.
Are Vivosun inline fans as good as AC Infinity?
In HWGrow's 2021 test of 4-inch fans, the AC Infinity drew 28 W against 59 W for the Vivosun and looked stronger. Vivosun now sells EC fans such as the AeroZesh T6, rated at 35 W and 408 CFM, which we have not seen independently tested.
Can I mix Vivosun and AC Infinity equipment?
Yes for basic devices that plug into an outlet. Automation is brand-specific: AC Infinity's controllers drive its UIS devices directly, and Vivosun's GrowHub controllers work with Vivosun devices. A mixed setup usually means switching outlets rather than controlling fan speed directly.
Sources
Specs and measurements change between product revisions. We list the date we last checked each source.
- Independent measurement AC Infinity vs Vivosun 4-inch inline fan comparison, HWGrow (howweedgrow.com). Checked Nov 13, 2026. 2021 units; wall-power draw measured, airflow compared by a sleeve test rather than an airflow bench.
- Manufacturer AC Infinity warranty program, AC Infinity. Checked Nov 13, 2026.
- Manufacturer Vivosun warranty policy, Vivosun. Checked Nov 13, 2026.
- Manufacturer VS LED Light user manual (PDF), Vivosun. Checked Nov 13, 2026. Lists Samsung LM301D diodes, PPE up to 2.7 µmol/J, and a 5-year warranty on VS lights bought directly from Vivosun.
- Manufacturer AC Infinity CLOUDLAB 844 advance grow tent 4x4, product page, AC Infinity. Checked Nov 13, 2026.
- Retailer listing Vivosun P448 4x4 Grow Tent Pro, retailer listing with manufacturer specs, Hydrobuilder. Checked Nov 13, 2026.
- Manufacturer Vivosun complete grow tent kit 4x4 (VSK-GIYE448G2), product page, Vivosun. Checked Nov 13, 2026. One feature bullet on the page mentions an R4 fan; the included-items list and spec table say R6.
- Retailer listing AC Infinity 4x4 smart automated LED grow tent kit, retailer listing, Hydrobuilder. Checked Nov 13, 2026.
- Manufacturer AC Infinity CLOUDLINE T6 inline fan with temperature/humidity/VPD controller, product page, AC Infinity. Checked Nov 13, 2026. Current page lists 425 CFM and 30 dBA; older AC Infinity listings and retailers show 402 CFM and 32 dBA.
- Retailer listing Vivosun AeroZesh T6 inline fan with E12 controller, authorized dealer listing, Trimleaf. Checked Nov 13, 2026. Noise rating varies between listings, so we do not quote it.
- Reference AC Infinity vs VIVOSUN buying guide, TheOneGrow (retailer). Checked Nov 13, 2026. A retailer that sells both brands.
- Reference AC Infinity vs Spider Farmer smart grow system, HappyHydro (retailer). Checked Nov 13, 2026. A retailer that sells both brands.