LED Efficiency

Compare LED efficiency and life, the conception of efficiency is more complex. Firstly, there are three kinds of general efficiency, please check the below:

Lamp beads:

Luminous Efficiency(lm/W): Connect lamp beads to DC power source directly, the rate of lamp beads flux and consumption power; Luminous Efficiency= lamp beads flux/ consumption power.

Conversion Efficiency: Connect lamp beads to DC power source directly, the rate of light power and total consumption power; Conversion Efficiency= lamp beads light power/ total consumption power

Single LED in the application Environment:

Luminous Efficiency(lm/W):  Connect lamp board to DC power source directly, the rate of lamp board flux and consumption power; Reflect the average luminous efficiency of lamp beads

Conversion Efficiency: Connect lamp board to DC power source directly, the rate of light power and total consumption power; Generally, do not consider this parameter.

LED Power Driver:

Luminous Efficiency(lm/W): No

Conversion Efficiency: Connect with AC power, the rate of output power and input power; Driver Conversion Efficiency=Driver output power(Pout)/Driver input power(Pin)

Total luminaries:

Luminous Efficiency(lm/W): Connect total luminaries to AC power source directly, the rate of output flux and input power; Total Luminaries Luminous Efficiency= Total luminaries Output flux/Input power

Conversion Efficiency: Connect total luminaries to AC power source directly, the rate of output light power and input power; Generally, do not consider this parameter

 

Tags：LED Efficiency