Much of our outdoor lighting wastes energy because it is not well designed. This waste results in high operating costs and increased environmental pollution from the extra power generation needs. A large fraction of poor lighting shines directly upwards, creating the adverse sky glow above our cities that washes our view of the dark night sky, taking away an important natural resource. Good lighting does its intended job well and with minimum adverse impact to the environment. Fully shielded light fixtures are more effective and actually increase safety, since they have very little glare.
Glare can dazzle and reduce the effectiveness of the emitted light.
It has the lighting fixtures carefully installed to maximize their effectiveness on the targeted property and minimize their adverse impact beyond the property borders. It uses fixtures with high-efficiency lamps, while still considering the color and quality as essential design criteria. Most high-efficiency lamps last a long time, reducing costly maintenance. Highly efficient fixtures may cost more initially, but the payback time is short, and such fixtures will save money in a short time. That is, the lighting will serve its intended purposes of increasing safety, visibility, and a sense of security, while minimizing detrimental effects upon the area near the lighting and will do all these things at a lower cost than that which is paid for less-efficient lighting.