Do you really understand the efficiency of LED high bay light ?

First of all, for a single lamp bead, the efficiency has two concepts:

1,Luminous efficiency of lamp beads is 1 w per input power, how much can send light, the efficiency is to measure the single lamp bead luminous efficiency indicators, rather than to measure the whole lamp luminous efficiency indicators, single lamp bead luminous efficiency is the basis of the whole LED high bay light luminous efficiency and is not equal to the entire lamp luminous efficiency;

2, light conversion efficiency, refers to the energy of every input 1 w, how much electricity is used to light.

General use more luminous efficiency, conversion efficiency is usually used to evaluate the development level of chip.
led (2)

Second, in the application environment , lamp bead efficiency is generally not used, but generally used to evaluate a number of lamp bead quality, is under the condition of without considering driver, lamp beads directly on the light board consumption ratio of the total power and light shine.such lumen can reflect a group of lamp bead average luminous efficiency, to identify the quality of lamp bead.

In addition, the efficiency of the drive may be familiar with the person more, is the input drive of power and the ratio of the drive of the output power is the conversion efficiency of drive.

In common propaganda, people often put the LED high bay light of luminous efficiency is confused with luminous efficiency of the single lamp bead .For the relationship between them, we can roughly think: LED high bay light of luminous efficiency should be less than the luminous efficiency of lamp bead, in addition to drive bring the effects of conversion efficiency, and There is also a frequently neglected problems for everyone, that is the influence of the structure of lamps and lanterns.

The impact of LED high bay light structure not only refers to the impact of the diffuser, especially for the side light type lamps and lanterns, its light conversion efficiency is very low, can be said to be a bottleneck restricting side emitting type lamps and lanterns.So, if we say that the whole lamp luminous efficiency , should be deducted from the driver of the conversion efficiency and the structure of the lamps and lanterns of conversion efficiency.

Efficiency in the LED lighting is a complex concept.At the same time, we would also point out that the efficiency of LED high bay light is not immutable, it with the changing work environment, such as the temperature of the work will cause changes efficiency.So when we talk about the efficiency of LED industrial light, which is not only to specify whether the efficiency, but also points out what is the efficiency of the environment.

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