Dispersion: 360°
Bulb NOT included.
1/Pack

Can be converted to a working lamp.
Bottom open to accept a bulb. Bulb found here: RO10

Here are the dimensions for the available sizes:

6mm Dimensions: R=1/4" (6mm) H=7/16" (11.5mm)

12mm Dimensions: R=15/32" (12mm) H=23/32" (18.5mm)