Supply Light

We discovered an ancient civilization underground. We want to investigate, but batteries and power sources are unusable, and even our cell phones won't turn on.
The only usable item found underground is a device that emits light. It seems there are also light sources scattered around that have run out of energy.
—Operate the light-emitting device and supply energy to the light sources to illuminate them!
Cleverly use the gimmicks left behind by the ancient civilization to direct the light beam to the light sources.