3M End Cap Black, Rubber, 20.9mm

From 3M, these cold shrink end caps are moulded in black EPR, are UV-resistant and are pre-expanded on an applicator ring for easy application on-site or in storage areas, without the need for grease, tools or a torch; they ensure a reliable seal.

Single-digit 7-segment Blue LED displays from Broadcom (Avago Technologies).