Translations:Lighting/3/en

• Light Emitting Diode (LED) - this design uses what is called a diode which creates light when electrical current passes through it. LED lighting is the only appropriate option for use in an off-grid PV system. LED lighting as it is far more efficient and durable than its predecessors - incandescent (traditional bulbs) and compact fluorescent lamps (CFL). LED bulbs cost slightly more than these other two options initially, but are cheaper when their longer life cycle is considered, not to mention the importance that their reduced consumption contributes to reducing overall PV source and energy storage system size. Reductions in the cost of LED lighting, as much as reductions in the cost of PV modules, have contributed to increasing accessibility of PV systems for people in rural areas that lack electricity. Commonly available in both alternating current (AC) and direct current (DC).