405nm 200mW Violet/Purple Dot Laser Module – 12V, TTL Modulation & Fan Cooling

Product Overview

This 405nm laser module produces a violet/purple dot beam with a nominal optical output of 200mW. It features a black aluminum housing, active fan cooling, and a separate constant-current driver board.

Operating from a 12V DC supply, the module supports TTL on/off modulation using a 0–5V control signal. The manufacturer states that continuous operation is supported with the cooling fan running and adequate ventilation.

Key Features

• 405nm violet output: Produces a violet/purple laser dot.

• 200mW nominal optical power: For integration into compatible equipment and experimental setups.

• TTL on/off control: Supports a stated modulation frequency of 1–20kHz.

• Active fan cooling: Helps dissipate heat during operation.

• Aluminum housing: Compact construction with a black finish.

• Separate constant-current driver: Driver board mounted separately from the laser head.

Specifications

Power and Installation

• Use a regulated 12V DC power supply. Excess voltage may immediately damage the driver and laser module.

• The 0–5V TTL connection is a control input, not the main power input.

• Verify wiring and polarity before connecting power.

• Keep the cooling fan and ventilation openings unobstructed.

• TTL provides on/off modulation; it should not be treated as an analog power-control input.

Package Contents

• 1 × 405nm 200mW violet dot laser module assembly with cooling fan.

Laser Safety

Avoid direct or reflected beam exposure to eyes and skin. Use suitable laser protective eyewear rated for 405nm and the applicable exposure conditions. Never look into the laser aperture or direct the beam toward people or animals.