出生地 |
Shanghai China (Mainland) |
- Thermal switch with 30-60s time-delay for luminaries protection (JL-501) - Electronic switching for incandescent bulbs only - Polycarbonate enclosure - CdS sensor (JL-501) - Photodiode sensor (JL-502) - Printed circuit board (JL-502) On-off levels: 10 - 20lux on (dusk); 30 - 60lux off (dawn) (JL-501), 15lux (JL-502) Ambient temp.: -40 +70° C Related humidity: 96% Power consumption: 1.5VA max.