Mini Pecan Pie Muffins. Iâm sharing another tried-and-true recipe from my cookbook. I love these mini muffins because theyâre delicious, easy to make (you donât even need a mixer), they freeze well, and theyâre done in 20 minutes! I brought these to school today to share in the teacherâs lunch room and they disappeared.
Example: Calculate Streetlight Watt of following Street Light Area, 1  Required Illumination Level for Street Light (L) is 6 Lux per Square Meter. 2  Luminous efficacy (En) is 20 Lumen per Watt. 3  Required Street Light Area to be illuminated (A) is 1 Square Meter.
Lumen is a measure of amount of light emitted by the projector; in laymanâs terms, the brightness. A low lumen value â 1500 or less â will only be visible in a dark room. 3000 lumen and higher will be visible in daylight, but truthfully any projected image will look better when thereâs less ambient light.