Improve Energy Efficiency: After installation, the wall switch socket cover can seal the vents tightly, making it difficult for cold air/warm air to escape through the air outlet box, which can effectively prevent wind and heat insulation and help improve energy.

Improve Energy Efficiency: After installation, the wall switch socket cover can seal the vents tightly, making it difficult for cold air/warm air to escape through the air outlet box, which can effectively prevent wind and heat insulation and help improve energy.