... ) Suitable for installing holes of 22mm and 25mm Long life time, good price Manufacturer AD16 LED signal lamp (signal light)Model ... , yellow, green, white, bluePacking: Standard exporting packageSuitable for installing holes of 22mm and 25mm, no additional parts need to be ... addedTaking LED chip as the light source, AD22 series indicator lamp shows long service life, low energy consumption, small volume ...