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new laser therapy hoeko 650nm watch laser low frequency laser llt rhinitis anti snore apparatus rhinitis laser therapy massager купить по лучшей цене

5V laser head dot laser diode copper semiconductor laser diode; Outer diameter: 6mm; Wavelength: 650nm; Power: 5mA; Please pay attention to the battery safety prevent battery from short circuit burning or explosion by dismounting the battery; Good monochromaticity good coherence and good directivity high brightness; Mainly use for laser toy various gradienter rotating laser level; And it can make electronic pointer pen; HF-LD; Micro liquid crystal display; Long distance sound monitor; Long distance light control anti-theft alarm; Long distance laser wireless communication; This laser head is composed of Luminous tube core condensing lens adjustable copper cover; They are assembled and the lens is adjusted; Can be used directly via connecting to 5V power supply
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