Built-in torchlight: Most kits come with a strong torch (flashlight) on the main unit — often a 10 W to 20 W LED light that you can use separately from the three small bulbs. This is great for focused lighting or emergencies.
Powered by the same battery: The internal rechargeable battery (often ~5000 mAh lithium or lead-acid) supplies power both to the bulbs and the torch without needing extra batteries.
Charging from solar: You charge the whole system by placing the solar panel in direct sunlight — typically 10–12 hours of sun gives a full charge.