
Sunlight Greenhouse Automatic Window Opener Alloy Material Factory Direct Sales. Temperature Sensing Automation: Automatically adjusts window opening based on temperature changes to maintain ideal humidity. No Battery or Electricity Required: Operates independently without external power sources or batteries. Durable Galvanized Steel Construction: Made from galvanized steel for long-lasting performance in greenhouse environments. 5-Year Warranty Coverage: Comprehensive 5-year warranty included for peace of mind. Flexible Customization Options: Available for full customization, minor customization, and customization from samples or designs. Multiple Color Options: Available in silver, black, blue, yellow, and red to match various styles. Fast Lead Time: Standard lead time of 15 days for both peak and off-peak seasons. Low MOQ Requirement: Minimum order quantity starts at just 1 piece.