Energy-efficient light bulbs. Assortment of energy-efficient (low energy) light bulbs. These light bulbs use a process similar to that in fluorescent tubes,rather than the simple glowing filament of conventional bulbs. These bulbs are up to five times more efficient at converting electricity into light. Therefore,for a given light output,the bulbs use far less electricity. Although more expensive than traditional bulbs,these designs last far longer,providing an overall saving | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bond, Martin |
Bildgröße: | 2908 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |