Composite image of incandescent and compact fluorescent light bulbs. Compact fluorescent lights,or CFLs,are more energy-efficient,while traditional incandescent bulbs are being phased out in many parts of the world | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Treadwell, Robin |
Taille de l’image : | 3798 px × 2502 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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