Electric Torch

Wondrous item, common

This brass pipe features a warm, glowing vestibule at its end, and its brass fixtures are polished to a golden finish on the handle. You can use a bonus action while holding the torch to pull a short cord that hangs from the top of the pipe, just below the vestibule. Pulling the cord allows you to activate the torch's light, change the light's radius, or extinguish it. While lit, the torch sheds bright light in a 5- to 30-foot radius and dim light for an additional number of feet equal to the chosen radius. If you take lightning damage while the torch is on your person, the minimum and maximum radiuses of the torch's light are doubled for 1 hour. 

"A simple bit of magic, straightforward, yielding barely more than a simple torch. Yet, if the light is indeed bottled lightning, its reception has been doubly so; if we ignore it, if we let such a seemingly basic thing pass us by, then someone else will take it up and light the way to a future without us. The time to act, the time to invent, is now."
—Wallen Lightwell, founder of the Arcano-Mechanists' Foundation