Qhov chaw kho tshiab ntawm LED Tubes

LED muab kev teeb tsa monochromatic nrog lub ib nrab-dav-dav.}} lub led luminous ci ci l yog kwv yees kom muaj Forward tam sim no. Raws li cov kev nce nqi tam sim no tseem muaj feem xyuam rau qhov kub thiab txias thiab txias