LEDs, first developed in the early 1960s, produce light by moving electrons through a semiconductor. Consumers "going green" have already begun switching out their incandescent bulbs for compact fluorescents, which are miniature full-sized fluorescents. However, my husband had a little trouble tightening the screw on the solar panel, so it tended to slip to less than an optimal angle.
LEDs, first developed in the early 1960s, produce light by
ReplyDeletemoving electrons through a semiconductor. Consumers "going green" have already begun
switching out their incandescent bulbs for compact fluorescents, which
are miniature full-sized fluorescents. However, my
husband had a little trouble tightening the
screw on the solar panel, so it tended to slip
to less than an optimal angle.
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