Overall, for the same output, LED bulbs save the most energy, followed by CFL and halogen bulbs. Therefore, for a desired lumen figure, you have choices over the bulb types. You probably have known that you can use different bulbs of different wattages to produce the same light output. This is to reduce the contrast between the lit area and the darker area so that your eyes do not have to adjust dramatically when they wander around. It is also suggested that the darker the surrounding environment, the lower the lux you need for your light. The brightness level of the light is decided by the lux figure, that is, how many lumens it can emit on a square meter.Īs suggested by the National Optical Astronomy Observatory, we need the illumination of 250 to 500 lumens per square meter for easy, normal visual tasks, such as reading, writing, knitting, and working on the computer.įor more detailed work like drawing or embroidery, an illumination between 1000 to 2000 lumens per square meter is necessary. But it shouldn’t be too bright or your eyes will strain. Whatever you do, you want a lamp that is bright enough so you can see with no difficulty. ( Photo source) The lumen figure and what it tells Light temperature, moods and effects created, and applications.
0 kommentar(er)
