These is part of their hardship stories and how they came out successfully through these challenges. These lights were only source for their studies. It was not easy to study under the dim light, yet many of them lived a successful life.
Unfortunately every new generation cares least about the previous, because we always try to give our best to the new generation and hardship is realized only when faced. Still these prized possessions will cherish our memories for our life time at least. We had three of them ( for three of us) and they are kept carefully.