S. No. |
For Residential Meter |
Without PIR Motion Sensor |
With PIR Motion Sensor |
1 |
Power capacity of one tube light in watt |
40 |
40 |
2 |
Operational hours of corridor tube lights |
12 |
3 |
3 |
Total consumption in watts per day |
480 |
120 |
4 |
Number of days in a month |
30 |
30 |
5 |
Total power used by one tube light in kw |
14400W = 14.4 KW |
3600W = 3.6 KW |
6 |
Cost of electricity per kw in Rupees |
4.5 |
4.5 |
7 |
Amount paid per month @ Rs. 4.50 per unit |
64.8 |
16.2 |
8 |
Savings per month per 1 tube light in Rupees. |
|
48.6 |