International Science Community Association Research Journal of Recent Sciences 2277-2502 7 6 2018 06 2 Standby automatic LED light on power failure 12 15 EN Khandu Pema 1 Civil Engineering and Architecture Department, College of Science and Technology, Rinchending, Phuentsholing, Bhutan Sharma Deepti 2 Civil Engineering and Architecture Department, College of Science and Technology, Rinchending, Phuentsholing, Bhutan Wangmo Chimi 3 Civil Engineering and Architecture Department, College of Science and Technology, Rinchending, Phuentsholing, Bhutan Sharma Benoy 4 Civil Engineering and Architecture Department, College of Science and Technology, Rinchending, Phuentsholing, Bhutan Puri Debu 5 Civil Engineering and Architecture Department, College of Science and Technology, Rinchending, Phuentsholing, Bhutan Thakuriah G. 1 Geography Department, Cotton University, Guwahati, India Ghalley Maita Raj 1 Department of Electronics and Communication Engineering, College of Science and Technology, Rinchending, Phuntsholing, Bhutan Singye Pema 2 Department of Electronics and Communication Engineering, College of Science and Technology, Rinchending, Phuntsholing, Bhutan Zangmo Pema 3 Department of Electronics and Communication Engineering, College of Science and Technology, Rinchending, Phuntsholing, Bhutan Choden Kezang 4 Department of Electronics and Communication Engineering, College of Science and Technology, Rinchending, Phuntsholing, Bhutan Dorji Rinzin 5 Department of Electronics and Communication Engineering, College of Science and Technology, Rinchending, Phuntsholing, Bhutan > Research Article 2017 11 23 2018 06 2 Light has become the essential part of people. Works can be seldom done in absence of light. The aim of this paper is to design a Standby automatic LED light. It switches on automatically on power shutdown. This device has high luminous value, extensive valuable life and small size. Besides, they consume less power and need no manual intervention. The rechargeable battery is used to power up the LED. The battery charges when the power exists. LDR is used to sense day and night. It helps the LED glow only during night when the power supply fails. The suggested method is not complex and inexpensive. Its core feature is the ease of implementation and reliability. The designed circuit of the Standby automatic LED light is verified and fabricated. The output obtained is satisfactory. Copyright@ International Science Community Association