Causes Antibiotic resistance can also be introduced artificially into a microorganism through transformation protocols. This can be a useful way of implanting artificial genes into the microorganism. Antibiotic resistance is a consequence of evolution via natural selection.
How long do LEDs last? LEDs are notable for being extremely long-lasting products. Many LEDs have a rated life of up to 50,000 hours. This is approximately 50 times longer than a typical incandescent, 20-25 times longer than a typical halogen, and 8-10 times longer than a typical CFL. Used 12 hours a day, a 50,000 bulb will last more than 11 years. Used 8 hours a day, it will last 17 years!
For the math inclined here is the assumptions used to determine the cost savings of a LED light: LED lifetime is based on 12 hours of use each day. Lifetimes are based on manufacturers statistics normally from 30,000 hours to 100,000 hours. Cost of electricity is based on 10 cents per kilowatt hour.