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Boston University Research Shows RayVio UVB LED is 2.4 Times More Efficient Than Sunlight for Producing Vitamin D3 in Human Skin
UV LEDs (293 nm) produce the more Vitamin D in skin than 290-305 nm UVB – Sept 2017 | Vitamin D Life
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PDF) Ultraviolet B Light Emitting Diodes (LEDs) Are More Efficient and Effective in Producing Vitamin D3 in Human Skin Compared to Natural Sunlight
293 nm UVB LED More Efficient in Geneating Vitamin D3 than Sunlight, Found Boston University - LEDinside
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