LED bulbs really save electricity
1。 Only a few degrees electric consumption high efficiency and energy saving: one thousand hours! ( Generally 60 w incandescent seventeen hours 1 KWH, general 10 w energy-saving lamps one hundred hours consumption 1 KWH)
2。 Long life: semiconductor luminescence, no filament, no glass bulb, not afraid of vibration, invulnerability to breakage and service life of up to fifty thousand hours ( Generally incandescent lamp only one thousand hours service life, the service life of the general energy-saving lamps and only eight thousand hours) 3. Light: light, no ultraviolet and infrared radiation does not occur! ( General lighting line contains ultraviolet and infrared)
4。 Green environmental protection does not contain harmful elements such as mercury and xenon, conducive to recycling and and electromagnetic interference will not occur Usually contains the elements such as mercury and lead in the tubes, electronic ballast of energy-saving lamps will happen electromagnetic interference)
5。 Protect eyesight: LED energy-saving lamp adopts dc drive, no stroboscopic ( Generally light is ac drives, stroboscopic)
6。 High luminous efficiency: small LED filament bulb fever, 90% of the electricity converted into visible light ( Generally incandescent bulbs 80% of electrical energy into heat, only 20% of the electric energy into light energy)
7。 High safety factor, the required voltage and current is small, less heat, no potential safety hazard, in mines and other dangerous sites
light-emitting diodes (leds) : in general, a positive long feet. Two pens and measurement, measurement than carrying diode respectively on two feet, pay attention to the interval, if the table has readings, red pens and the measured end at the moment as the positive, of the diode leds shine at the same time; Without reading, will pens and measure in turn again; If two measurement readings, show that the light-emitting diodes (leds) has been damaged.
zener diode: a black circle at one end of the negative. Table test, if there is a number, the red pens and the test end is positive, and the black table slip is negative; If not, measure in turn again. If two measurement readings, show that the zener diode has been damaged.
rectifier diode: a white circle is negative. Table test, if there is a number, the red pens and the test end is positive, and the black table slip is negative; If not, measure in turn again. If two measurement readings, show that the damage of rectifier diode is
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