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The Hanna Instruments HI98107 pHep pH tester is a rugged and reliable pocket-sized tester for use in the lab or field
Durable 20 gauge powder-coated steel enclosure
Now with automatic relight ignition
Plant-safe green backlit LCD with adjustable brightness and large
Growers Choice DE 1000W MH 4K cloning-&-seed-starting The Hanna Instruments HI98107 pHepThe Grower's Choice 4K bulb is a slightly warmer metal halide, making it suitable for both flowering and vegetative growth. Growers get the most use out of this style of bulb towards the end of the vegetative stage. Outputs UV spectra for enhanced resin production 5% degradation rate at 10,000 hours High quality quartz glass for consistent spectral output and PAR production Designed to prolong bulb life and preserve light quality
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