The products Betta1 (with one LED light) and the Betta2 (with 2 LED lights) have proved to be products of good quality, durability and robustness.
Its purpose is to give light and charge cellphones.
Solar panel is included.
The products have a Lead Crystal Battery, which enhances its longevity.
It comes in a Do-It-Youself kit, with all the fasteners.
Comes with various adaptors to charge most makes of cellphones