during the peak purchasing period in april 2026, many business owners are worried about how to reduce the cost of security equipment. signal lights from traditional channels cost hundreds of dollars, but many products on 1688 have a unit price as low as 0.48 yuan, and support bulk purchases of 100,000+ pieces. behind this is the efficiency revolution of the factory direct supply model. for example, yueqing aomeng electric has

On factory electrical panel installation sites, engineers often struggle with signal lights due to voltage mismatches. in the past, switching to a different piece of equipment meant re-selecting the signal light, and frequent replacements not only delayed project timelines but also increased costs. now, a signal light that supports full voltage adaptation across 24v, 220v, and 380v completely eliminates this problem. it utilizes a **full-range voltage adaptive circuit**