MARS HYDRO TSW2000 Led Grow Light
Best high-efficiency lighting for serious indoor home gardeners.
Elevate your indoor garden with the MARS HYDRO TSW2000, a 300-watt LED grow light engineered for optimal plant cultivation. This light delivers a full spectrum essential for robust growth through all stages, from seedling to bloom. Its patented, highly-reflective hood maximizes light intensity and absorption, ensuring your plants receive the energy they need. Designed for quiet, energy-efficient operation, it offers a superior alternative to traditional lighting, providing significant energy savings and better yields.
$269.99
Owner Satisfaction
4.6
/ 5
Category Rank
105
/ 1082
#105 in LED Light Bulbs
Price vs Category Average
+257%
Above average
Actual Power Draw
308120300240
/ W (ACV) / W (ACV)
Who it's for
- Budget-conscious growers seeking lower long-term electricity bills
- Serious cultivators aiming for consistent yields across their entire canopy
- Residential growers needing a discreet and silent lighting solution
Who should skip it
- Hobbyists working with a strictly limited initial startup budget
- Tech-focused growers requiring precise, automated, or remote dimming capabilities
- Small-tent growers struggling to manage heat in enclosed spaces
Performance breakdown
Photosynthetic Efficiency
High PAR output ensures plants receive optimal energy for rapid growth.
Spectrum Versatility
Full spectrum coverage supports every stage from seedling to heavy bloom.
Thermal Management
Fanless aluminum design keeps temperatures low without any mechanical noise.
Light Uniformity
Reflective hood design minimizes hot spots for consistent canopy development.
Operational Flexibility
Precise dimming and daisy chain options provide excellent control for growers.
Energy Efficiency
Delivers professional-grade intensity while maintaining a modest power draw.
Key Specs
Actual Power Draw
308 W (AC120V) / 300W (AC240V)
Coverage Area
3.5'x3.5' Core; 4'x4' Max
Input Voltage
AC85-265V
Spectrum
660-665nm, 3200-4200Knm, 5200-6800Knm
PAR Value
910umol@18''/3.5x3.5ft
Noise Level
0dB (Fanless)
Material
Aluminum
Dimensions
21.2'' x 19.7'' x 3.7''
Features
- Highly-reflective hood design
- Uniform light distribution
- High efficiency SMD LEDs
- Sunlike full spectrum light
- Adjustable 0-100% dimming
- Fanless, quiet operation
- Daisy chain capability
- Wide voltage compatibility
What customers say
The TSW2000 is highly praised for its exceptional value. It offers professional performance and excellent canopy coverage at an accessible price point. Customers consistently highlight its robust build quality and reliability, noting the powerful and steady light output that supports plants through every growth phase. This blend of high performance and affordability makes the TSW2000 a truly outstanding option for growers seeking quality without compromise.
Know before you buy
The TSW2000 provides a core coverage area of 3.5' x 3.5' for optimal growth, though it can be extended to a maximum of 4' x 4' depending on your specific plant requirements.
No, the TSW2000 features a fanless, aluminum design that operates at 0dB. It relies on passive heat dissipation, which keeps your grow space quiet and free of mechanical noise.
Yes, the unit includes a 0-100% dimming function. This allows you to lower the intensity for seedlings or clones and increase it as your plants mature into the flowering stage.
Yes, the light supports daisy-chaining, allowing you to connect multiple units to a single power source for easier management in larger indoor garden setups.
The TSW2000 offers a sunlike full spectrum, combining warm white, cool white, and daylight temperatures. This range is designed to support your plants through every phase of development, from germination to harvest.
The TSW2000 features wide voltage compatibility, supporting input ranges from AC85V to 265V. It is designed to function seamlessly across standard residential electrical systems.
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Ready to buy?
$270