Cost of the Lights. Low-end recessed lights cost between $20 and $60 each. Higher-end, low-voltage recessed lighting can cost $75 to $150 or more per light. Each light requires a housing that goes into the ceiling and a trim that covers gaps between the housing and the drywall.
Key Differences Between LED and CFL Bulbs. 1  The LED bulb stands for Light Emitting Diode, and CFL stands for Compact Fluorescent Light. 2  LED bulbs are more energy efficient than CFLs. 3  The LED bulb consumes less electricity than its counterpart CFL 75% a year in energy cost.
LED in Electrical Engineering (Él i di) or light-emitting diode. An LED is a semiconductor device that emits light. LED lights are much more efficient, working with only a fraction of the energy needed even by fluorescent lights even though offering much higher luminescence. A 3 digit LED display shows the output voltage of each individual channel. An LED is a semiconductor device that emits light.  A 3 digit LED display shows the output voltage of each individual channel.