"Did you know that leaving your outdoor verandah bulb on for 12 hours throughout the night for security purposes consumes at least 1 unit of electricity everyday?" I muttered to my friend.
"Oh really? In 30 days that's like 30 units just from one bulb! That's…
![](https://creosltd.com/wp-content/uploads/2020/10/bulb-close-up-crack-40889-370x244.jpg)