the G28d energy saving cap is a new lighting innovation which allows energy saving light bulbs like
compact fluorescents to fit in sockets that weren’t previously usable. beirut’s pslab created the ‘jar’
light based on a brief to develop a light fixture using this new innovation. they took the common jar
that can be bought anywhere and outfitted it with all the necessary hardware. all the parts can be fit
inside the jar, allowing to serve as its own packaging. once opened and assembled, the jar remains
closed and the light bulb remains inside. because it is watertight, the light can be used outdoors,
in water and almost anywhere.

http://www.pslab.net