SJ/T 11989-2025 General Specification for Front Projector — Mini Projector is a legal practice software product available on the Whop marketplace, created by jade889 and launched in July 2026.

SJ/T 11989-2025 specifies the classification, technical requirements, test conditions, test methods and inspection rules for mini projectors. These are projectors with low power consumption and small size compared to traditional projectors. The standard covers three application categories: household mini projectors, commercial mini projectors and portable mini projectors. Display performance requirements are differentiated by type — for example, contrast ratios of >=75:1 (household), >=50:1 (portable) and >=65:1 (commercial), and on-off ratios of >=300:1, >=150:1 and >=200:1 respectively. **Available in Chinese only. For English or other language versions, purchase at [www.china-standard.com](http://www.china-standard.com).**

SJ/T 11989-2025 General Specification for Front Projector — Mini Projector has is priced at $9.99 (one-time payment).

SJ/T 11989-2025 General Specification for Front Projector — Mini Projector offers a 30% affiliate commission for promoters. Track SJ/T 11989-2025 General Specification for Front Projector — Mini Projector's estimated revenue, member growth trends, and competitive market position on Whop Trends.