Artificer’s Spark

This tiny lantern can be worn as a necklace or bracelet. It has a sheath around it which, when slid down, reveals the Magically Tinkered light source. The lantern sheds bright light in a 5-foot radius and dim light for an additional 5 feet. This property lasts indefinitely unless the Artificer who created it exceeds the limit of tinkered magic items. As an action, the Artificer who created the spark can touch the object and end the property early.* 

*See Magical Tinkering under the Artificer description