Lumen depreciation is simply stated as the loss of lumen output over a period of time in any given lamp. Most lamps naturally reduce the lumen output over time but to varying degrees depending on type. It is important to note that lumen depreciation isn’t the same thing as burning out a lamp. Lumen depreciation is when lumens are lost gradually over time due to repeated use. For instance, if a lamp produces 900 lumens when brand new and in five years only produces 700 lumens, that is a depreciation of 200 lumens.
𝗪𝗵𝘆 𝗱𝗼𝗲𝘀 𝗶𝘁 𝗺𝗮𝘁𝘁𝗲𝗿
The reason lumen depreciation is important is because most spaces require a specific number of lumens to ensure proper illumination. If the space loses these lumens over time, it will become dimmer in the room or area. It is also a matter of value for the money invested. For example, if you are constantly using lamps with higher lumen depreciation, you will need to replace them more regularly to maintain the lumen needed for the space.