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The 420 Spider comes standard with a dimmer switch for infinitely variable brightness control
Switch to the TGS TitanSun
giving you complete control over your plants' growing conditions
The compact and waterproof Bluelab EC Pen accurately measures the conductivity (EC or ppm) and temperature of your plant nutrient solutions
420 LED System | 150W energiezuinig The 420 Spider comes standard420 LED System: Innovative and Efficient LED Grow Light for Optimal Growth & Flowering 4Twenty introduces the 420 LED System, a modular connectable 150 Watt LED grow light that can be perfectly adjusted to the size and shape of your grow space. High Efficiency LEDs The 420 LED System is equipped with 312 Samsung LM301B LEDs, giving the 420 an impressive efficacy of 2. 9 mol J. This makes it one of the most efficient LED grow lights on the market. The
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