Autonomous security light, uses light-emitting diode for low power illumination and cold-cathode discharge tube for high power emergency lighting

摘要

The security light (1) has a case (2) housing a continuously operating low light output lamp (34), an emergency lighting lamp (36) with higher light output, a NiMH battery and a battery charger. The continuous lamp (34) is a light-emitting diode, and the emergency lamp is a cold-cathode fluorescent lamp. The lamp parameters are chosen so the overall power consumption is less than 1 Watt.