About Product:This products is a new energy lighting switch, used high sensitivity detector, and IC, and SMT refined and into; it set automatically, and convenient, and security, and energy, and practical yú one; by upper and lower, and around service area constitute big range detection district; using human issued of infrared energy do for control signal source, dāng was entered detection district, can immediately started by control of load; can automatically recognition day and night; installation convenient, and using range wide; has power indicates and detection indicates function.