GPL B22 brass sheet lamp holder is a type of electrical fitting used to secure light bulbs. The "B22" designation refers to the type of bayonet cap, which is a common bulb base used in many parts of the world, including the UK, Australia, and New Zealand. The "22" in B22 stands for the diameter of the cap in millimeters.

• GP-018B: B-22 Brass Lampholder, 10mm or ½” entry thread, with shade ring and earth tag.
• GP-018BP: B-22 Brass Lampholder, 10mm or ½” entry thread, without shade ring and with earth tag.
• GP-018BT: B-22 Brass Batten Lampholder with shade ring and earth tag.