Use of energy-saving lamps; Reducing public lighting
| Strengths, factors in favour | Weaknesses, uncertainties | Costs, economic impacts |
| With the help of timers, lighting can be switched off completely or it can be dimmed for a certain period. | Safety may suffer if there is less light at certain locations. | - Replacement and installation of lamps increases costs. |
| Less light pollution facilitates observation of natural phenomena (stars, northern lights). | The type of energy-saving lamps must be selected to suit the location. | - Acquisition and installation of timers or dimmers raises costs. |
| Lower energy consumption of lighting and less emissions. |
| + Reduced energy consumption of lighting saves costs in the long term. |
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