What should I look for when choosing a solar street light manufacturer in Maharashtra?

We are planning to install solar street lights for a residential and commercial outdoor lighting project in Maharashtra. There are many suppliers and manufacturers available, so I'm trying to understand the most important factors before making a decision.

What should be checked regarding battery quality, solar panel efficiency, LED performance, warranty, maintenance requirements, and overall product lifespan? Are there any common mistakes buyers should avoid when selecting a solar street light manufacturer?

I would appreciate suggestions from people who have experience with solar street light installations in Maharashtra.