Laser module dimension: 33mm*33mm*75mm Output wavelength: 445nm~450nm Output Power: 4W TTL frequency:0V(OFF) 5V(ON) PWM frequency:<9Khz Focal length: 450nm 4W adjustable Note: 1. Can engrave materials: wood, bamboo, plastic, paper, leather, bank card, rubber,          ★ Note: 1. Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin! 2. Please note that the laser module should work for less than half an hour in one time. And then continue to work after cooling down to ensure the period of use. 3. We will send you a plug adapter according to your country. 4. The warranty period of laser module is one month.
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