How long do LED lights last? LED Lifespan Explained

LED lights last longer than incandescent, CFL, fluorescent, or other conventional lights. LEDs are praised for their very long lifespan of 50,000 to 100,000 hours. LED lights do not completely burn out rather slowly fades after a defined lifetime. LED lifespan is typically defined in hours. But how many years an LED with 50,000 hours … Read more

(Solved) How many photons are contained in a flash of green light (525 nm) that contains 189 kJ of energy?

How many photons are contained in a flash of green light (525 nm) that contains 189 kj of energy? give your answer to 2 significant figures and in scientific notation. (1) 4.99×10^23(2) 7.99×10^30(3) 5.67×10^23(4) 1.25×10^31(5) 3.75×10^23 = 4.99e23 Photons Explanation: We know, c = f λ (Equation 1) Here, c = speed of light (m/s) … Read more

What does IP44 mean? IP44 Rating Explained

The IP44 means the degree of protection against solid objects bigger than 1 mm and splashing water from all directions. Here, ‘IP’ stands for Ingress Protection or International Protection, and digits ’44’ describe the exact degree of protection against contact, and the ingress of foreign bodies as well as water. You may have seen IP … Read more