How long do LED lights last? Get Improved LED Lifespan

LEDs have a very long lifespan. LED lights last longer than incandescent, CFL, fluorescent, or other conventional lights. The average lifespan of led lights is 50,000 to 100,000 hours. An LED rated at 50,000 hours will last more than 11 years if utilized 12 hours a day. It will last 17 years if used for … 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