Using state-of-the-art solar power, the DH-235 series is designed especially for ease of installation and peace of mind. An integral high-sensitivity solar panel ensures operating power is permanently engaged even in poor light conditions for maximum protection. Standby current consumption is incredibly low and the built-in backup battery maintains operation for more than three months in overcast weather conditions. It has a modern, eye-catching appearance, piercing siren output and bright visible intruder deterrent. It meets IP55 IP degree and is ideal for outdoor installation.