... quality and competitive pricesFactory since its inception, always focus clip lamp, clip light, book lampE14 R50 MAX.40W AC110/230VCTN(cm ... .5*49QTY(pcs):20G.W.(kgs):12N.W.(kgs):10This lamp has excellent monochromaticity ,brilliant and fresh color, the color temperature ... hours to ten thousands hours,it is the key replacement of traditional fluorescent lamp and suitable for office ,school,and home use ...