Testing electric light bulbs. Endurance testing of electric light bulbs. Samples are taken from a production line and tested as part of a quality control procedure. These are filament light bulbs,which have a shorter lifetime than newer forms of lighting technology such as fluorescent lights. For electric filament bulbs,the lifetime depends greatly on the voltage used. Long-life bulbs are simply ordinary bulbs running on a lower voltage. Depending on the voltage used,lifetimes may range from as little as 2 hours to many years. Average values for normal operating conditions are around 1000 hours continuous use | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kinsbergen, Ton |
Bildgröße: | 5154 px × 3447 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |