https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
Bao Feng Sheng Technical Waterproof IR Housing

Bao Feng Sheng Technical Waterproof IR Housing

Bao Feng Sheng Technical
Region: China
Update: 05/21/2010
Key Specifications
Features:
* Four sizes: Diameter at 50 mm, 60 mm, 70 mm and 80 mm
* Fixed focus series and varifocal series
* OSD support
* Waterproof
https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions