Alarm (Alarms), Alat pengukur (Measuring instruments), Baterai, listrik (Batteries, electric), Diafragma [fotografi] (Diaphragms [photography]), Instrumen navigasi (Navigational instruments), Jam tangan pintar (jam yang terhubung dengan gawai) (Smart watches), Kaca mata (Eyeglasses), Kamera [fotografi] (Cameras [photography]), Kamera perekam (Camcorders), Kamera sinematografi (Cinematographic cameras), Kawat listrik (Wires, electric), Komputer (Computers), Lampu ajaib (alat optik untuk memproyeksikan gambar yang diperbesar pada layar) (Magic lanterns), Lampu kilat [fotografi] (Flashlights [photography]), Lensa optis (Optical lenses), Lentera sinyal (Signal lanterns), Pencetak untuk digunakan dengan komputer (Printers for use with computers), Peralatan dan instrumen optis (Optical apparatus and instruments), Perekam video (Video recorders), Reduktor [kelistrikan] (Reducers [electricity]), Saklar listrik (Switches, electric), Telepon pintar (Smartphones), Telepon seluler (Cell phones)