Harness solar power with this powerful LED security wall light with PIR. Fully directional heads for convenience it has 3 different PIR operational settings A. PIR 100% brightness for 30 seconds. B. Constantly on at 30% then when PIR is activated 100% brightness for 30 seconds. C. Constantly on at 50% brightness.. Power storage using a 3.7V 1200mAh*2 Li-battery.