SpotOn Quantum Par Meter Base Nutrients Potassium is critical in blooming

Potassium is critical in blooming plant development

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The impressive 1972 PPFD value guarantees deep light penetration for enhanced growth

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SpotOn Quantum Par Meter Base Nutrients Potassium is critical in bloomingSpotOn Quantum Par Meter A reasonably priced metre that measures Photosynthetic Active Radiation (PAR) light under any light source, including LEDs! Provides accurate PAR light readings from any source of light. In or outside, full sun to full shade. Synthetic lighting (LED, HPS, Metal Halide, Florescent, Halogen, etc.). THREE MODES OF OPERATION: For PAR light readings, use the Instant Spot Measurement mode. Scan mode for speedy area wide averages of