R39 Spot reflector is 39mm diameter, and made from glass
![](https://cdn.shopify.com/s/files/1/0049/0779/4499/files/Untitled-3_large.jpg?v=1543185774)
E14 base also commonly known as 'SES' or 'Small Edison Screw' is the standard 14mm diameter screw cap.
![](https://cdn.shopify.com/s/files/1/0049/0779/4499/files/Untitled-3_large.jpg?v=1543185774)
This is a traditional incandescent light bulb, with pearl finish.
These bulbs give a warm white light colour.