Phone Giant - Can a potato light up a bulb? Yes, a potato(e) can be used to power a lamp. ... The zinc and the copper are the anode and cathode terminals
The Physics Classroom - How to Make a Potato-Powered Light Bulb Here's an easy-to-follow, 6-step directions on how to power a light-bulb circuit with a potato. It's a great chance to experiment
How to Make a Potato Lamp | Sciencing
Potato power: the spuds that could light the world - BBC Future