It's wonderful that you've acquired a second-hand H-LASE fiber laser source. If you need a manual for this specific type of laser source, I recommend reaching out to the manufacturer directly. You can typically find contact information on their official website or by searching for their customer support details online.
Additionally, you might want to check if there are any online forums or communities dedicated to laser enthusiasts or professionals. Sometimes, individuals who own similar equipment may be willing to share manuals or provide guidance based on their experiences.
If you don't have success with these approaches, consider contacting the person or entity from whom you purchased the laser source. They may have additional information or resources to assist you in obtaining the manual.
Remember to prioritize safety when testing or operating any laser equipment, and ensure that you follow the manufacturer's guidelines and recommendations.
For specific assistance with your H-LASE fiber laser source, I recommend visiting the official Heat Sign website (
or contacting them via email at info@heatsign.com or by telephone at +86-15061477073.