More importantly, this knowledge will ensure that your lighting supplier does not mislead you, as they may try to convince you of the advantages of a lighting fixture by citing impressive lumens or candela numbers that are not relevant to your needs. Knowing the difference between lumens and candela will help you choose lighting fixtures that suit the needs of your workplace Lumens and candela are units of measurement for lighting, but they measure different aspects of a lighting fixture. Step 3: Example: An LED luminaire produces 1.5 candela at a corner angle of 70 °, how many lumens does it produce? All you have to do is replace 1.5 cd and 70 ° C in the conversion formula, which will give you: 1.7lm. Step 2: Enter the candela and degrees into the formula: lumens = candela × (2π (1 – cos (degrees / 2))) . Step 1: Obtain the candela and the vertex angle in degrees of the light source. (These values are in catalogs and the internet). In other words, the formula to convert from candela to lumen is as follows: Steps to convert from candela to lumen When making the replacement of the formula of the steradians (2) in the formula of candela to lumen (1), we have the following: To convert from candela to lumens, the value of candela must be multiplied by the angular interval of the light source in steradians, as shown in the following formula (1): Where, is the symbol of the lumens to find and, is the symbol of the candelas, while, it is the symbol of the steradians that are defined by the following formula (2): ![]() Examples of how to convert from candela to lumen
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |