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Lamp Base for "Hemingray-Brookfield Spiral-Groove" Glass Insulators

Lamp Base for "Hemingray-Brookfield Spiral-Groove" Glass Insulators

Regular price $36.00 CAD
Regular price $0.00 CAD Sale price $36.00 CAD
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Base Color

BYOI - Bring you own insulator.
This minimalistic, contemporary lamp base fits the following glass insulators:

  • Hemingray - Spiral Groove
  • Brookfield - Spiral Groove

It embraces a unique, modern, industrial, techno look, perfect for you loft or mid-century eclectic décor.
This gorgeous lamp would also be a great accessory for your Lanai or 4 Season porch. And it makes a great addition to any man cave.
The base light uses a 1.5-watt LED light bulb, available in 4 different LED colors and 2 different base colors (white or black).
It has a 5 1/2 ' black cord with an in cord on / off switch.


  • I recommend green LEDs for Turquoise (green) and blue LEDs for aqua insulators.
  • The first picture is using a green LED and the third picture a white LED
  • The base does not include a LED light bulb. LED light bulbs are available for an extra fee.
  • This is a base only and does not include a glass insulator.
(c) 2022 LightAndTimeArt
We also have gift certificates available for your friends.

CD Number



PLA (plastic)

Power cord


Diameter: 3.0 inches

Height: 1.25 inches


Power: 110V
Lamp Base Socket: E12
Cord: 6ft. Black SPT-1, Cordswitch, and Molded Polarized Plug


Nicknamed the spiral groove because of the unique spiral-shaped wire groove patented on October 8, 1907. These were made both by Hemingray and Brookfield. The quickest way to identify a Hemingray-made CD 147 is to check the embossing. "PATENTED OCT 8 1907" will always appear together on one side of the insulator. (Brookfields always have a separate "PATENTED" on one side by itself.) Hemingray also manufactured the unembossed CD 147.

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  • Vintage Industrial

    The creative reuse of old vintage glass insulators as lamps puts these old design icons back in the hands of people, out of dark basements and attics. The beauty of the industrial design pieces is their versatility – you can treat them as feature piece or liberally use them throughout any contemporary space.

  • Artwork

    All creations are designed by
    © LightAndTimeArt.

    Made in USA.