VIVOSUN AeroLight Wing AW200SE and GrowHub E25

Hardware summary

The adjustable wings have three useful geometries. VIVOSUN says the wide position increases coverage about 10%, while the narrow position increases central PPFD about 10%. Standard or wide makes more sense for a mixed-height, mixed-light collection; narrow concentrates an already strong hotspot.

IP65 on the fixture does not make the wall outlet, E25, connectors, or power strip safe to soak. Keep every electrical connection above any watering spill path and use secure hangers at both ends of the light.

The manufacturer's PPFD data does not fully agree

The product specification table gives a single figure of 691 µmol/m²/s at 12 in. A separate official 5 × 5 map, described as measured at 100% in a VIVOSUN 4 × 2 reflective tent, gives much higher 12-inch values:

The means above are calculations from the printed grid, rounded to the nearest whole number. The 12-inch map average of about 870 does not reconcile with the separate 691 specification. Possible causes include a different wing setting, grid area, meter, fixture revision, or reporting convention, but VIVOSUN does not explain the difference on those pages.

For planning, the map shows why height and room geometry matter:

• distance lowers the central hotspot and improves map uniformity;
• reflective tent walls keep the printed edge values unusually high;
• an open shelf can lose much more edge light than this map suggests; and
• the only number that describes this collection is a measurement at the actual plant tops.

Open VIVOSUN's original PPFD map image.

Raw map transcription

These are the manufacturer's printed grid values, retained so future shelf measurements can be compared with the original claim.

12 in at 100%

14 in at 100%

18 in at 100%

Estimating dimmed output

LED photon output is often roughly proportional to dim setting. Until measured, multiply a 100% map value by the selected fraction:

estimated PPFD = map PPFD × dim percentage

This is a planning estimate, not calibration. Driver behavior, wall reflections, wing angle, and meter uncertainty prevent exact scaling.

At 18 inches and 50%, the tent-map estimate is already about 353 average and 428 at center. Over 12 hours that is roughly 15.3 and 18.5 mol/m²/day DLI—solid succulent light, not a weak “half power” setting.

VIVOSUN's own stage chart recommends 24 in/50%/18 h for cannabis seedlings, 18 in/75%/18 h for vegetative plants, and 12 in/75–100%/12 h in flower. Those are manufacturer recipes for a fast annual crop in a tent. They are not cactus care instructions and should not be copied wholesale.

PPFD, DLI, and lux without the jargon

• PPFD is the instantaneous number of photosynthetically active photons landing on a square metre each second, traditionally measured from 400–700 nm. It is the best direct “how strong is the plant light right here?” value.
• DLI adds those photons across the whole light period. A moderate lamp for a long day can deliver the same DLI as a stronger lamp for a shorter day.
• Lux weights light for human vision. It is convenient and cheap to measure but underweights deep red and almost ignores the AW200SE's 730 nm far red.

For a fixed light:

DLI (mol/m²/day) = PPFD × hours × 0.0036

Twelve-hour conversion table

Apogee shows why no universal lux conversion exists: its factors range from about 54 lux per µmol/m²/s for sunlight to 74 for white fluorescent light. Published broad-white horticultural sources cluster around 59–65. VIVOSUN does not publish an AW200SE-specific conversion. Using 55–70 lux per PPFD is a deliberately wide estimate for this mixed white/red/far-red fixture:

rough PPFD range = lux ÷ 70 to lux ÷ 55

For example, 20,000 lux suggests roughly 286–364 µmol/m²/s, not one exact number. A phone sensor is still useful for finding relative hotspots if the same phone, orientation, and app are used every time.

Working light targets for this collection

These are starting hypotheses, not published species thresholds. They combine native exposure, growth form, variegation, broad succulent research, and the need to avoid stretching under indoor light. Most exact taxa have never been tested in controlled DLI trials.

Research support is strongest for the general direction, not every row. A recent Echeveria cultivar experiment found 12.8 DLI produced more compact growth and better performance than 4.8. A study of six other Kalanchoe species found improvements as DLI rose from 4.3 to 8.6 or 17.2, depending on species. A classic Opuntia CAM study reported light saturation near 700 µmol/m²/s under its conditions; that result should not be pasted onto every cactus genus.

Simple starting program

This is the low-fuss summary. The operating schedule provides the complete six-week table and outdoor-day rules.

1. Set the wings to standard or wide.
2. Measure from the tallest cactus or succulent tip inside the direct light footprint, not the shelf or peripheral money-tree canopy. Begin at 20 inches at 40% for seven days, then use 18 inches at 40% for a second week.
3. Run a fixed 12 hours on / 12 hours off. A schedule such as 8 a.m.–8 p.m. is easy to inspect and leaves a real dark period.
4. The installed AW200SE/E25/VIVOSUN app combination has verified 1% adjustment from 25% to 100%, so the schedule can use small changes. The older planter's month outdoors provides some acclimation, but brief sun in bright shade is not the same as a stationary close lamp.
5. Put the variegated moon cactus, Dragon's Egg, and the pale side of the variegated blue torch toward an edge. Put rainbow hedgehog, Astrophytum, golden torch, and Old Man of the Andes nearer the stronger zone.
6. Raise short high-light pots on stable risers instead of lowering the lamp until a tall plant is too close. Leave all August additions directly on the second wooden table until their tabletop-to-tip heights are measured.
7. The actual setup reached 18 inches and 45% on August 14, three days before the former Day 15 step. Hold 45% through August 30 while the emergency repot and paired airflow are evaluated. Try 50% on August 31 only if the plants and new-medium dry-down are stable.
8. Use 50–55% at 18 inches as the likely later indoor range, arranged by zones. Use 55% only while the plants remain healthy; 60% is an optional evidence-based ceiling, and 75–100% is not the default goal.

The money tree is not a cactus: keep it at the window/periphery, move or shade it if leaves bleach, and use its separate watering rule. The Kiwi aeonium also starts below the strongest cactus center. The August additions do not reset the established light ramp; they acclimate at the edge before moving inward.

The six Mountain Crest plants ordered on 2026-08-25 were received, inspected, and repotted into 4-inch pots on 2026-08-28. Live 2026-08-29 Ruler records give height × width as P23 1.25 × 1.15 in, P24 1.0 × 2.55 in, P25 1.35 × 2.75 in, P26 1.8 × 1.6 in, P27 0.5 × 1.2 in, and P28 1.3 × 1.7 in. Those plant dimensions are not measured light clearances or maintained positions, so their rows remain starting ranges. Do not move the fixture or raise the whole collection's power for them; use the outer zone and watch for the response to indoor acclimation. The Split Rock and indoor-grown Sempervivum keep separate seasonal and watering logic even when they share the room with the cacti. Their later positions are recorded in the current placement guide.

If plants spend meaningful hours outside, outdoor and indoor DLI add together. Do not automatically give a full 12-hour lamp day after a sunny outdoor day. Preserve at least an ordinary nighttime dark period.

What to watch

Measuring the real shelf

A measurement grid is more useful than one center reading.

1. Remove or work between plants without changing the normal wing position.
2. Hold a PAR sensor—or the same phone lux sensor—horizontal at actual plant-tip height.
3. Record at least a 3 × 5 grid across the occupied footprint, plus the tallest tip and the variegated plants.
4. Note dim percentage, distance, wing setting, reflective walls, and whether room daylight was blocked.
5. Compare minimum, mean, and maximum. Arrange plants around that map before buying more equipment.
6. Repeat only after a meaningful height or dimming change.

A real quantum/PAR meter is the direct tool. A consistent phone lux setup can help compare relative bright and dim spots; retain its spectrum-dependent conversion as an estimate. Photographing the same growing points monthly is the other half of the measurement.

E25 and airflow use

The confirmed E25 controllers are useful mainly for repeatability:

• put the light on a fixed daily schedule;
• put each controllable pole fan inside that light window on its own shorter schedule;
• change dimming deliberately rather than by accidental button presses;
• use the app's automatic programs only after checking what hours and intensities they actually send;
• remember that the controller does not know leaf temperature or room humidity without additional sensors; and
• keep 2.4 GHz Wi-Fi available during pairing.

VIVOSUN says each separately controlled device needs its own controller path. Keep the light's E25 in the AW200SE Type-C controller port and one E25 on each E6 Gen2. The light's RJ45 ports do not join a fan to the existing controller. Compatible AeroLights can share an E25 through an RJ45 light chain, but AeroWave fans do not directly daisy-chain fan-to-fan; the installed setup uses three independent E25 paths rather than a splitter.

Use the integrated fan at its lowest gentle Natural Wind setting. The two pole fans supply opposing, offset cross-canopy sweeps. Begin both E6 Gen2 units at Natural Wind Level 1–2 of 10 with Level 4 of 5 oscillation where supported. Fan 2 is clipped high on the opposite divider end and points slightly downward. Test each alone and then both together. Reposition before raising either fan. The canonical schedule caps each E6 at 11 hours 30 minutes per day and gives the placement and seasonal timer values.

Slight intermittent leaf, hair, or tissue-strip movement is useful. Rocking plants, flattened hairs, moving top dressing, desiccated tips, or one side drying much faster than the rest mean the airflow is too concentrated.

At full rated light power for 12 hours, the fixture uses approximately 2.4 kWh/day or 72 kWh per 30-day month. At an idealized 50% it is about 1.2 kWh/day or 36 kWh/month; actual driver and fan consumption may not scale perfectly. Multiply monthly kWh by the local electricity rate for cost.

Sources

• VIVOSUN AW200SE product specifications
• VIVOSUN AeroLight SE manual and stage chart
• VIVOSUN GrowHub E25 guide
• VIVOSUN AeroWave E6 Gen2 specifications
• VIVOSUN AeroWave E Series manual
• VIVOSUN E42A Type-C splitter for multiple fans
• Apogee Instruments: PPFD-to-lux conversions by light source
• Apogee Instruments: instantaneous PPFD to DLI
• Horticulturae: DLI responses in Echeveria cultivars
• University of Minnesota: DLI responses in six Kalanchoe species
• Plant Physiology: light response in CAM Opuntia ficus-indica