Parameter

Wavelength: 650nm
Output Power: 10mW
Working Current: <30mA Working Voltage: 5.0VDC Shape: Dot Duty Cycle: 5 minutes on, 1 minute off TTL frequency: 0-15KHz TTL modulation Voltage: 0-5V Off low, high open, normal status open Dimensions: 12mmx40mm Detail: red wire for 5V+, black wire commonly for 5V- and Yellow wire for TTL +. If you only connect its black wire and red wire, the laser would not work, you also need to connect its yellow wire (TTL+) to 5v+. When the TTL signal is connected, the higher the frequency is , the less brighteness the laser will have. when it is >15KHZ, the laser cannot be seen.

Package

1pc 650nm 10mW Red Laser Dot Module w/TTL 0-15KHz