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The QB PRO+ series has an IP65 waterproof and dustproof rating, which effectively prevents moisture and vapor entry, making it ideal for greenhouses and water-rich situations. Different wavelengths of light have varying penetration abilities through materials, and thick waterproof materials can cause significant light loss. Our IP65 rating employs a nano waterproof covering that improves waterproofing while reducing light loss, particularly against transpiration water vapor produced by plants during photosynthesis. The nano waterproof coating technology not only decreases light loss, but also provides long-term protection, eliminates dust accumulation, and increases the lights' lifespan.