Lighting is defined as all the equipment whose primary function is to provide electric light. The global lighting market was valued at around USD 73 billion in 2011 and it is expected to exceed USD 100 billion by 2020.
However, most lights contain valuable and toxic metals that may leach into soils/waterways and take up space if disposed of in landfills. For this reason it is fundamental to know how to manage properly lighting-related waste.