Aren’t we are going too much technical here for these trivial lighting job that too in farm. Many time too much technical will induce fear among normal users and they go away from application thinking complexity. Someone clearly informed that they don’t want to read under light. Even if there is little less illumination between two poles, I don’t think it is matter of concern.
I would encourage farm members here atleast for lighting purpose go to DIY (Do It Yourself) route. Lighting from solar panels in no rocket science. Most of the individual components available in market. The most expensive part will be solar panels. then charge controller. Solar panel would be 70 to 80% of cost.
Why I am suggesting DIY route is, in most of the developed country maximum amount of farmer do these things themselves. Why not in India? It wll have many benefits
- Saving in Cost
- You can plan your DIY as per capital availalibility
- Most satisfying.
For example: First time just put one light and see till what area it is giving sufficient light as per your requirement. Then put another pole at the distance where you need light. No need to go for lots of technical in these aspects. There are other area that need your maximum attention.
There will be below maintenance activities
- Clean Solar Panels once in a month from dust and debris sticked on it.
- Battery replacement in 4 - 6 years. This will be major expense.
- LED/CFL replacements once it is fused.
Similar way, you can install the lightings inside your farm house as per your requirement.