Micro-processor based intelligent and efficient indigenous design. Easy to install off-grid system, Theft proof long life lithium battery pack. All in one solar street-light comes with built-in passive infrared PIR motion sensor which automatically detects human/traffic presence adjusts LED brightness accordingly. If there is nomotion for more than 30 seconds, the controller reduces brightness to fifty percent. On detecting any movement in the range of 12meters, the light will automatically glow at full power. This provide required illumination only when needed and helps in increasing battery backup period.