(3) Ua phem rau cov hluas qhov muag
Tom qab xyoo 1980s, T8 (26mm) fluorescent teeb uas tau tsav los ntawm inductor ballast tau siv dav hauv tsev neeg, tsev kawm ntawv thiab tsev qiv ntawv. Vim tias muaj kev puas tsuaj loj ntawm cov nyhuv stroboscopic nyob rau hauv ib puag ncig teeb pom kev zoo, cov tub ntxhais kawm theem pib thiab theem nrab kev loj hlob raug kev txom nyem ntau heev, lawv qhov muag poob qis, thiab myopia nce ntau.
