Which one among the following is the correct order of power consumption for light of equal intensity ?

• A. CFL tube < Fluorescent tube < Incandescent bulb < Light emitting diode
• B. Light emitting diode < CFL tube < Fluorescent tube < Incandescent bulb
• C. CFL tube < Fluorescent tube < Light emitting diode < Incandescent bulb
• D. Incandescent bulb < Light emitting diode < Fluorescent tube < CFL tube