LED lightbulb. LEDs (light-emitting diodes) use about one tenth of the energy for a given light output when compared with normal incandescent bulbs,instant start-up time and have a lifetime typically of 30,000 hours | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Woirgard, Frederic / Look At Sciences |
Bildgröße: | 5138 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: |
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