Bag of Sundrops

"This small, colorful bag is filled with 12 golden, marble-like orbs called sundrops that glow softly when held."

As an action, you can throw a sundrop at a point or object you can see within 30 feet. When you do, the orb explodes into a dazzling pillar of light that lasts until the start of your next turn. The pillar is a 5-foot-radius, 40-foot-high cylinder of bright light centered on the point where the sundrop shattered. The light is sunlight.