Thaum lub zog hluav taws xob sab nraud txuas nrog, cov khoom siv hluav taws xob hloov hluav taws xob tsim hluav taws xob ntau ntawm ntau txhiab lossis txawm kaum txhiab volts. Thaum qhov hluav taws xob siab no tau siv rau cov electrodes ntawm ob qho kawg ntawm lub raj neon, cov khoom siv hluav taws xob hauv lub raj tau nrawm rau hauv qhov siab -voltage hluav taws xob teb thiab ya mus rau cov electrodes, tsim cov electrons ntau. Cov electrons zoo siab no tau nrawm rau hauv qhov siab -voltage electric teb thiab sib tsoo nrog cov roj atoms hauv lub raj.
Thaum lub zog ntawm cov electrons sib tsoo nrog cov roj atoms dawb yog loj txaus, cov roj atoms yog ionized rau hauv zoo ions thiab electrons; Qhov no yog qhov tshwm sim ntawm cov roj ionization. Lub zog dhau los ntawm kev sib tsoo ntawm cov khoom siv hluav taws xob thiab cov roj atoms yog tawm hauv daim ntawv ntawm photons, yog li ua tiav tag nrho cov txheej txheem ntawm lub teeb neon illuminating lub raj.
