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.
This is the quantity of light that leaves the lamp, measured in lumens (lm). Lamps are rated in both initial and mean lumens. 1  Initial lumens indicate how much light is produced once the lamp has stabilized; for fluorescent and high-intensity discharge (HID) lamps, this is typically 100 hours.