Mars Hydro TSW2000 300W LED Grow Light – Dimmable Full Spectrum for 3x3–4x4 Grow Tents

Running a 3x3 tent with a light that can't keep up is the fastest way to kill your yield — the TSW2000 is built to fill that space properly.

At 300W with Samsung LM301B diodes and a full-spectrum output tuned for both veg and flower, the TSW2000 delivers dense, even coverage across a 3x3 ft canopy. The dimmable dial lets you start low for seedlings and push full power through late flower. Runs cool and quiet with no fans, and ships fast from U.S. warehouses with a 3-year warranty.

The go-to choice for hobbyists running a 3x3 tent who want commercial-grade diodes without the commercial price tag. Handles everything from herbs and vegetables to heavy-flowering plants through a full cycle.

Key Features

• Samsung LM301B diodes — proven commercial efficiency at hobbyist pricing
• 300W full spectrum — optimized for veg and flower stages
• Dimmable output — fine-tune intensity at every growth stage
• Fanless silent design — no noise, no vibration
• Daisy-chain compatible — expand without extra controllers
• 3-year warranty — backed by Mars Hydro U.S. support

Specifications

• Power: 300W
• Coverage: 3x3 ft (flower), up to 4x4 ft (veg)
• LED Type: Samsung LM301B
• Spectrum: Full spectrum (3000K, 5000K, 660nm, IR)
• Dimmable: Yes
• Cooling: Passive (fanless)
• Voltage: AC 100–240V
• Lifespan: 50,000+ hours
• Warranty: 3 years

Ideal For

• 3x3 ft grow tent setups
• Hobbyists wanting Samsung diodes without commercial pricing
• Herbs, vegetables, and heavy-flowering plants
• Full cycle grows from seed to harvest