Secret Jardin Dark Room V3 DR150 5' x 5' x 7'8" Hydroponic Grow Tent

The Secret Jardin Dark Room V3 DR150 is a professional grade indoor grow tent designed for gardeners who need a larger 5' x 5' growing footprint, exceptional vertical clearance, reinforced structural support, and extensive equipment access for a complete indoor garden.

With assembled dimensions of approximately 5 feet wide by 5 feet deep by 7 feet 8 inches high, the DR150 provides approximately 25 square feet of usable floor space and significantly more vertical room than standard residential grow tents.

• Grow Space: Approximately 25 sq. ft.
• Height: Approximately 7'8"
• Reflectivity: 95% Hammered Mylar
• Frame: Reinforced 19 mm Steel

The extended 7'8" height gives growers additional clearance for tall plants, suspended lighting, carbon filters, exhaust fans, ducting, environmental controllers, and other overhead equipment. This extra vertical space can also make it easier to maintain proper distance between the canopy and lighting fixtures as plants mature.

The enclosure uses Secret Jardin 210M hammered reflective Mylar rated at approximately 95% reflectivity. The textured interior is designed to scatter reflected light across the growing area, helping improve light distribution throughout the canopy and reducing light lost to the enclosure walls.

The Dark Room V3 series is engineered with strong light control in mind. The supplied product information describes Level 3 light proofing, helping create a highly controlled environment where scheduled light and dark periods can be maintained more consistently.

The DR150 frame is constructed from 19 mm zinc plated steel tubes. Secret Jardin states that this reinforced frame provides approximately 26% greater overall rigidity, giving the structure increased resistance to flex when properly supporting lighting, filtration, and ventilation equipment.

Eight specialized access ports provide dedicated routing for extraction, intake, electrical cables, and compatible cool tube equipment. This gives growers substantial flexibility when designing the environmental system around a larger 5' x 5' workspace.

The included Space Booster helps prevent the enclosure walls from pulling inward when powerful exhaust equipment creates negative pressure. Preserving the full shape of the tent helps protect valuable canopy space around the outer edges.

Secret Jardin also includes a 5' x 5' WebIT trellis net for canopy support. The trellis can be combined with the Space Booster to help organize plant growth, maintain an even canopy, and improve light distribution across the entire square footprint.

The supplied accessory package also includes CableIT clips for cable organization, PocketIT adjustable storage, HookIT lighting supports, and StrapIT filter straps.

The interior and exterior surfaces are fully washable, making the DR150 easier to clean between growing cycles and helping gardeners maintain a tidy indoor environment.

The enclosure is compatible with soil and hydroponic growing systems and can be configured around additional environmental equipment such as ventilation, filtration, automated irrigation, and compatible CO2 systems.

Secret Jardin also describes the Dark Room construction as waterproof and pre equipped for extraction and ventilation, with equipment bars designed to support lamps and carbon filters.

For gardeners building a larger indoor garden who want a taller enclosure, reinforced 19 mm framing, approximately 95% reflective Mylar, eight specialized equipment ports, trellis support, negative pressure reinforcement, and a complete accessory package, the Secret Jardin Dark Room V3 DR150 offers a substantial step up from smaller hobby tents.

5' x 5' Growing Footprint

The DR150 provides approximately 25 square feet of usable floor space. The square layout works well with large square LED grow lights, multiple plant containers, trellis systems, hydroponic systems, fabric pots, automated irrigation, environmental monitoring equipment, circulation fans, and larger plant canopies.

Extended 7'8" Height

The DR150 stands approximately 7 feet 8 inches tall. The additional vertical space provides room for taller plants, suspended lighting, carbon filters, inline exhaust fans, ducting, environmental controllers, hanging hardware, greater light clearance, and larger containers.

25 Square Feet of Floor Area

A 5' x 5' footprint provides approximately 25 square feet of growing area. Actual plant capacity depends on container dimensions, plant size, training style, lighting footprint, airflow requirements, equipment placement, and required maintenance access.

210M Reflective Mylar

The DR150 uses Secret Jardin 210M reflective material. The fabric is designed to provide strong light containment, durable enclosure walls, high interior reflectivity, washable surfaces, reliable environmental separation, and long term performance in indoor gardens.

95% Reflective Interior

The hammered Mylar interior is rated at approximately 95% reflectivity. This helps redirect light toward the canopy, reduce light absorbed by the enclosure, improve side illumination, reduce dim areas, improve lower canopy exposure, and make more effective use of installed lighting.

Hammered Reflective Surface

The textured Mylar surface scatters reflected light across multiple angles rather than concentrating reflection in a single direction. This helps distribute illumination around central plants, outer canopy edges, lower foliage, corners, and spaces between containers.

Level 3 Light Proofing

The supplied product information describes the DR150 as using Level 3 light proofing. The enclosure is designed to minimize unwanted light entering or escaping through fabric walls, seams, access areas, equipment openings, and door closures. This supports more consistent scheduled light and dark periods.

Reinforced 19 mm Steel Frame

The DR150 uses 19 mm zinc plated steel tubes. This reinforced frame provides greater structural stability, increased resistance to flex, better support for properly mounted equipment, stronger enclosure alignment, and improved long term durability.

26% Increased Rigidity

Secret Jardin states that the 19 mm frame provides approximately 26% greater overall rigidity. This can be particularly useful when properly supporting grow lights, carbon filters, inline fans, environmental equipment, and hanging accessories. Always follow the manufacturer’s recommended load limits.

Zinc Plated Steel Construction

The frame tubes use zinc plated steel construction. This provides a sturdy structural system designed for repeated use in humid indoor gardening environments. Regular inspection is still recommended, particularly around frame joints, equipment bars, hanging points, and corner connections.

Equipment Support Bars

The supplied manufacturer information states that the Dark Room includes equipment bars for supporting lamps and carbon filters. These bars help organize overhead equipment while keeping floor space available for plants and growing systems.

Eight Specialized Equipment Ports

The DR150 includes eight specialized access ports. These are designed to support extraction, intake, electrical cables, and cool tube equipment. This gives growers flexibility when building a customized environmental system.

Extraction Access

Dedicated extraction openings can accommodate compatible exhaust equipment. A properly configured exhaust system can help manage heat, humidity, air exchange, negative pressure, and environmental stability.

Intake Access

Dedicated intake access can support fresh air entering the enclosure. Depending on the system design, intake can be configured as passive intake, active intake, ducted intake, or environmentally conditioned intake.

Cable Access

Dedicated cable openings keep wiring separate from the main doorway. These can accommodate grow light cords, fan wiring, pumps, timers, controllers, environmental sensors, and monitoring equipment.

Cool Tube Access

Dedicated openings can support compatible ducted lighting configurations and cool tube equipment. This provides more flexibility for growers using ventilation to manage lighting heat.

Space Booster Included

The included Space Booster helps prevent the fabric walls from being pulled inward by exhaust induced negative pressure. This helps preserve the full 5' x 5' canopy area, keep enclosure walls away from plants, maintain usable interior volume, improve clearance around outer plants, and support WebIT trellis placement.

Negative Pressure Management

Large exhaust fans can generate enough suction to pull flexible tent walls inward. The Space Booster helps maintain full canopy width, better plant clearance, more consistent airflow, greater usable growing area, and improved enclosure shape.

WebIT 5' x 5' Trellis Included

The included WebIT trellis provides structured canopy support across the large 5' x 5' footprint. It can help growers spread branches evenly, maintain a consistent canopy, support developing branches, improve light exposure, organize plant growth, and improve access between plants.

CableIT Cable Management

CableIT accessories help organize wiring throughout the enclosure. They can be used for lighting cables, fan wiring, sensor wires, controller cables, monitoring equipment, and trellis lines. Keeping cables organized reduces clutter around the floor and plant area.

PocketIT Adjustable Storage

PocketIT provides convenient storage for frequently used tools. It can hold items such as garden scissors, plant ties, thermometers, pH meters, EC meters, measuring tools, and small accessories.

HookIT Lighting Supports

HookIT accessories help simplify lighting installation. They can help support compatible lighting hardware, keep fixtures organized, make height changes easier, and reduce improvised hanging solutions.

StrapIT Filter Supports

StrapIT accessories are included for supporting compatible filtration and ventilation equipment. They can help mount carbon filters, ventilation components, and other compatible overhead equipment. Always verify equipment weight before installation.

Fully Washable Interior

The interior surface is designed to be washable. This makes it easier to remove dust, nutrient residue, water spots, soil, plant debris, and general buildup.

Washable Exterior

The exterior can also be cleaned as part of routine maintenance. Regular cleaning helps keep the enclosure and surrounding growing area organized between cycles.

Waterproof Construction

The supplied manufacturer information describes the Dark Room as waterproof. This helps provide additional environmental separation and simplifies cleaning, although standing water and irrigation spills should still be cleaned promptly.

Soil Compatible

The DR150 can support soil based container gardening using fabric pots, plastic containers, trays, hand watering, and automated irrigation.

Hydroponic Compatible

The large 5' x 5' footprint can accommodate many hydroponic system configurations. Possible setups include deep water culture, drip irrigation, coco systems, recirculating systems, drain to waste systems, and automated fertigation. Actual system dimensions should be verified before installation.

CO2 System Compatible

The supplied product information describes the Dark Room series as suitable for setups using compatible CO2 supplementation. CO2 equipment should always be installed and operated according to its manufacturer’s safety requirements and applicable regulations.

More Vertical Room for Environmental Equipment

One of the strongest advantages of the DR150 is its approximately 7'8" height. The additional space can make it easier to position carbon filters above the canopy, inline exhaust equipment, lighting fixtures, hanging hardware, sensors, controllers, and ducting. This can preserve more useful growing height below the equipment.

Improved Heat Management Potential

A taller enclosure provides more volume above the canopy where warm air can accumulate before being exhausted. Proper ventilation is still required, but the additional headroom can make equipment placement and heat management easier than in shorter tents.

Ideal for Larger Plants

The combination of a 5' x 5' footprint and extended height gives growers more flexibility for larger plant structures. Actual usable plant height depends on container height, fixture thickness, hanging hardware, required light distance, ventilation equipment, and training method.

Large Square Lighting Compatibility

The 5' x 5' footprint pairs naturally with larger square lighting systems designed for broad canopy coverage. When selecting a light, consider fixture dimensions, coverage specifications, hanging distance, heat output, mature canopy size, available vertical clearance, and frame load limits.

Easy Access

The DR150 uses high quality access points designed to make routine garden maintenance easier. The larger enclosure provides room for watering, pruning, plant inspection, trellis adjustment, equipment maintenance, and harvest access.

Portable Design

Despite its larger assembled dimensions, the tent is designed to be disassembled for storage or transport. A carrying case is included for easier organization when the enclosure is not assembled.

Recommended Setup Practices

• Read all Secret Jardin instructions before assembly.
• Assemble the frame on a clean and level floor.
• Confirm every 19 mm steel tube is fully seated.
• Make sure frame connections are square before adding equipment.
• Position the enclosure fabric carefully.
• Install the Space Booster before filling the tent.
• Install WebIT at the desired canopy height.
• Keep electrical connections above floor level.
• Organize wiring using CableIT.
• Keep extraction and intake openings unobstructed.
• Distribute suspended equipment weight appropriately.
• Support heavy filters and fans according to manufacturer requirements.
• Maintain safe clearance between lighting fixtures and fabric.
• Follow all electrical and fire safety requirements.

Assembly Overview

A typical installation includes:

• Assemble the lower frame.
• Install the vertical 19 mm steel tubes.
• Assemble the upper frame.
• Confirm all frame connections are secure.
• Position the 210M enclosure around the frame.
• Align equipment openings.
• Install the Space Booster.
• Install the 5' x 5' WebIT trellis.
• Install lighting using compatible HookIT hardware.
• Install filtration with StrapIT when appropriate.
• Route cables using CableIT.
• Position PocketIT.
• Configure ventilation.
• Inspect the enclosure for unwanted light gaps.

Lighting Setup

When installing lighting:

• Select a fixture intended for approximately 5' x 5' coverage.
• Verify the actual fixture dimensions.
• Use approved hanging hardware.
• Maintain manufacturer recommended canopy clearance.
• Account for mature plant height.
• Keep electrical components dry.
• Recheck fixture height as plants grow.
• Distribute fixture weight appropriately across the frame.

Ventilation Planning

Proper ventilation is important in a 25 square foot enclosure. When planning airflow:

• Position exhaust equipment toward the upper area when practical.
• Position intake lower in the enclosure.
• Keep duct runs reasonably short.
• Avoid excessive duct bends.
• Match fan capacity to enclosure volume and equipment heat load.
• Use the Space Booster when negative pressure pulls the walls inward.
• Keep unused access points closed.

Internal Air Circulation

Internal circulation fans can help move air throughout the larger growing area. Good circulation can help reduce stagnant corners, balance temperature, reduce localized humidity, move air below the canopy, improve environmental consistency, and improve airflow between plants.

Cable Management

Use CableIT accessories and dedicated cable ports to organize wiring. Proper cable management helps keep walkways clear, keep cords away from water, reduce clutter, simplify equipment identification, keep doorways unobstructed, and prevent wires from interfering with plants.

Plant Arrangement

The 5' x 5' interior can support multiple larger containers, trellis managed plants, hydroponic systems, central canopy arrangements, organized plant rows, and mixed container sizes. Maintain sufficient room for air circulation, watering, inspection, equipment access, safe wiring, and trellis maintenance.

Trellis Installation

When installing WebIT: position the net at the desired canopy height, use the Space Booster for support where appropriate, spread growth evenly across the available area, avoid excessive tension on the frame, maintain access around the canopy, and leave room for airflow below the trellis.

Cleaning & Maintenance

Routine Interior Cleaning

• Disconnect electrical equipment.
• Remove loose equipment where practical.
• Sweep or vacuum debris.
• Wipe reflective surfaces using a soft cloth.
• Use mild soap when necessary.
• Avoid abrasive cleaning products.
• Allow the enclosure to dry completely before operation.

Reflective Mylar Care

To help maintain the hammered reflective surface:

• Use soft cleaning cloths.
• Remove dust regularly.
• Clean spills promptly.
• Avoid stiff brushes.
• Avoid abrasive pads.
• Avoid harsh solvents.
• Do not drag sharp equipment against the walls.

Exterior Cleaning

• Disconnect electrical equipment.
• Wipe the outer surface with a soft damp cloth.
• Use mild soap when necessary.
• Avoid saturating electrical equipment.
• Allow the exterior to dry fully before use.

Zipper and Access Care

• Keep zipper tracks clean.
• Open and close access panels smoothly.
• Avoid forcing jammed closures.
• Keep fabric away from moving zipper components.
• Inspect seams regularly.
• Address damage promptly.

Frame Inspection

• Inspect the 19 mm steel poles regularly.
• Check zinc plated surfaces for damage.
• Confirm all joints remain securely seated.
• Inspect equipment bars.
• Verify suspended equipment remains securely mounted.
• Remove hanging equipment before performing frame repairs.

Port Maintenance

• Inspect equipment ports periodically.
• Keep extraction and intake openings free from debris.
• Support heavy ducting independently when necessary.
• Keep cable ports dry.
• Close unused openings securely.
• Check connections after repositioning equipment.

Space Booster Maintenance

• Confirm the Space Booster remains properly installed.
• Inspect attachment points.
• Make sure it is not creating unnecessary stress on the enclosure.
• Adjust WebIT tension when required.
• Keep sharp equipment away from the support system.

Storage

• Remove lighting and ventilation equipment.
• Clean and completely dry the enclosure.
• Remove WebIT and accessories.
• Disassemble the steel frame carefully.
• Keep poles and connectors together.
• Avoid sharply folding the reflective fabric.
• Protect Mylar from punctures.
• Store in a dry indoor location.
• Use the supplied carrying case for storage and transport.

What's Included

• Secret Jardin Dark Room V3 DR150 Grow Tent
• 210M Reflective Tent Fabric
• 95% Reflective Hammered Mylar Interior
• 19 mm Zinc Plated Steel Frame Tubes
• Frame Connectors
• Equipment Support Bars
• Space Booster
• Secret Jardin 5' x 5' WebIT Trellis Netting
• CableIT Cable Clips
• PocketIT Adjustable Accessory Pouch
• HookIT Lighting Supports
• StrapIT Filter Straps
• Eight Specialized Equipment Access Points
• Carrying Case
• Assembly Components