445nm Blue Light Power Beam Burning Laser Pointer - electronicroom
4W Industry Laser 445nm/447nm/450nm 4000mW Blue Laser Dot Module Diode NDB7A75 w/ TTL0-20kHz & Fan Cooling & Long Time Working: Amazon.com: Industrial & Scientific
445nm / 4000mW Blue Laser Module [CM Series]|レーザー・光学部品検索サイト Hikari-Kakaku