Electric cartridge NLH-PL-R1-E27-BL for plastic, lustra, Navigator 61351 with the ring is a high quality and functional electric boss. This model is made of plastic material that meets the E27 lamp base and is ideal for Lustra. Equipped with the hoop, this cartridge provides easy and reliable installation. Navigator 61351 is a perfect choice for both home and office use, because it is long-lasting and durable. Thanks to the plastic material, both light and high resistance. It provides both a cartridge and provides safe use and is ideal for providing energy efficient lighting. The perfect choice for use in Lustra and other lighting systems.