The system is simple: LED lighting products use semiconductor light-emitting diodes that aim to reduce the cost of lighting. The diode technology ensures high-quality lighting while reducing the energy consumption by 70% or even more. High power LED bulbs can be made interchangeable with other lamp models – in other words, powerful LED bulbs can be used to replace fluorescent or incandescent lamps. Nonetheless, the luminous efficacy varies greatly between incandescent and LED lamps.