기능

• This is a fully used type that contains the amount of dried sea firefly per experiment in an eyedropper so that you can easily conduct a light emission experiment.
• If you unseal the dropper and add water or sea water, it will start to emit light in about 20 seconds.
• During the process, light emission lasts about 10 minutes by lightly shaking the container or crushing the sea firefly inside the dropper.