Percival Scientific SciWhite LED Chamber Arabidopsis Growth Chamber Model AR-66L3
Compact, Uniform LED Growth for Low-Light Plant Research
The Percival Scientific AR-66L3 is a compact, precision-controlled plant growth chamber engineered for Arabidopsis thaliana, Brassica species, lettuce, spinach, and other low-light plant research. Designed to deliver uniform LED lighting, stable temperature control, and consistent airflow, the AR-66L3 supports reproducible experimental outcomes in research and laboratory environments where space efficiency is critical.
Powered by SciWhite™ LEDs enhanced with Red tiles and managed through the IntellusUltra™ controller, this chamber provides programmable lighting up to 360 µmol m²/s at 6″, with fine dimming control for sensitive photoperiod and developmental studies.
Features
Uniform, Plant-Optimized LED Lighting
Three tiers of evenly spaced SciWhite™ LEDs deliver consistent light distribution across each shelf, supporting uniform plant growth and reliable data collection.
High-Precision Environmental Control
Maintain stable temperature conditions from 7–44 °C (lights ON) and 4–44 °C (lights OFF) with tight ±0.1 °C stability under illuminated conditions.
Compact Footprint, High Usable Space
A 62.4 cu ft interior and 30.4 sq ft of growing area make the AR-66L3 ideal for labs requiring efficient use of floor space without sacrificing performance.
Built-In Experiment Protection
Adjustable high and low temperature limits with audible and visual alarms protect valuable research materials and automatically reset when conditions normalize.
Specifications
Environmental & Lighting Performance
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Temperature Range:
7–44 °C lights ON (±0.1 °C)
4–44 °C lights OFF (±0.5 °C) -
Lighting System:
SciWhite™ LEDs enhanced with Red spectrum -
Light Intensity:
Up to 360 µmol m²/s measured at 6″ from LED tiles -
Dimming:
10–100% in 1% increments via IntellusUltra™
Capacity & Interior Configuration
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Interior Volume: 62.4 cu ft
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Work Area: 30.4 sq ft
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Shelving:
Three tiers of solid 22-gauge stainless steel
Shelf size: 30.4″ W × 24″ D
Adjustable in ½″ increments -
Maximum Growing Height:
14″ per tier (35.6 cm)
Construction & Durability
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Interior walls: 22-gauge smooth galvanized steel
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Floor: 24-gauge #304-4 polished stainless steel
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Exterior: Galvannealed extra-smooth steel with NSF-compliant seam design
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Overall wall thickness: 2″ with foamed-in-place, non-CFC insulation
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Woodless, environmentally responsible insulation (GWP 0.0 / ODP 0.0)
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Floor drain with hose assembly
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Heavy-duty swivel casters and adjustable leveling legs
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One 1¼″ airtight access port on right-hand wall
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High-reflectivity baked white powder-coat finish (except stainless floor)
Refrigeration & Airflow
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Self-contained air-cooled condensing unit with hot gas bypass for continuous compressor operation and precise temperature control
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Ceiling-mounted evaporator coil with five aluminum-housed circulation fans
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Solenoid valves with extended stems for quiet, long-life operation
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Engineered airflow diffuser moves air along the back wall, across shelves, and returns through ceiling fans for uniform conditions
Access & Usability
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Two reach-in doors: 29.1″ W × 57.5″ H, full interior access
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Magnetic door gaskets ensure a tight environmental seal
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Two internal 115 V convenience receptacles
IntellusUltra™ Controller
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24-hour monitoring and control of temperature, lighting, humidity, and CO₂ (with options)
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Manual, Diurnal, Program, and Non-Circadian modes
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Step & Ramp programming: up to 500 steps across 50 programs
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16 programmable light/event outputs
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Deviation alarms and light lifetime alerts
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Dual experiment protection with independent primary and secondary limits
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Android-based high-definition touchscreen interface
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Graphical display of the last 6 hours of chamber performance
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On-board diagnostics and power-failure event logging
Typical Applications
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Arabidopsis thaliana growth and phenotyping
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Brassica, lettuce, and spinach cultivation
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Low-light photoperiod and developmental studies
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Genetic, physiological, and early-stage plant research
Available Options
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Additive humidity control with sensor
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Dehumidifier with sensor
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CO₂ enrichment package
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IntellusUltra Connect (remote access)
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Android-based touchscreen interface
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Self-contained water-cooled condensing unit
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Dry alarm contacts
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Alternate or dimmable LED lighting packages
Contact us for custom configurations to match your research workflow.
Expert Guidance You Won’t Get From Big Distributors
Unlike broad catalog sellers, we specialize in controlled environment systems with deep application support. Our team understands the experimental nuances: from controller programming to lighting strategies and environmental uniformity. We help you match chamber options to your research goals and ensure you get the right system.
Ready to refine your setup or get a tailored quote? Contact us for expert support and configuration advice.









