XB6EAV4BP is a monolithic Harmony XB6E pilot light - a single 16 mm red LED unit with integral LED and insulated faston, for panels too tight for 22 mm.

Why 16 mm instead of the standard 22 mm?

When the cutout budget is 16 mm, this is a one-part pilot: lens, LED, and holder are one body at 10 mA from 24V DC polarised, no separate lamp or socket to stock. The alternative - a 22 mm XB4/XB5 pilot - needs the larger hole and a separate LED block, wasting panel space on dense fronts.

What environment does the IP65 monolithic body take?

IP65, -10 to 55 C, 30,000 h LED life, cURus and CCC listed, any mounting position. The alternative - a non-sealed indicator - lets coolant past the bezel into the contact block on a washdown panel.

How is it terminated?

Insulated faston 2.8x0.5 mm, solder, or fast-connect socket - field-friendly for maintenance rewiring. The alternative - a soldered-only pilot - slows a panel build and needs a iron on the line.