How to choose laser modules with different output powers?
How to Choose Laser Modules with Different Output Powers
Problem Description
Different application environments require varying laser output powers.
Too low a power may result in insufficient brightness or limited projection distance, while too high a power can lead to overheating and increased power consumption.
Causes and Considerations
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Output power is proportional to brightness but also increases heat dissipation and electrical load.
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For indoor displays, guidance, or short-distance illumination, 30–60mW is generally sufficient.
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For outdoor projection, mechanical alignment, or long-distance guidance, modules above 100mW are recommended.
Recommendations and Selection Guidelines
| Application Field | Recommended Power Range | Thermal Design Suggestion |
| Indoor Indicator / Display | 30–60 mW | Passive cooling is sufficient |
| Projection Display / Interactive Exhibit | 60–100 mW | Aluminum substrate heat-conductive structure |
| Outdoor Guidance / Industrial Alignment | Above 100 mW | Active cooling or heatsink design |
Summary：
When selecting, consider output brightness, heat generation, and power capacity together.
For systems that operate for long durations, choose laser modules with temperature control and power monitoring support.
