ISLAMABAD: The Ministry of Industries and Production has proposed imposition of a 20 percent regulatory duty on light-emitting diode (LED) lighting products. The suggestion was discussed during a ...

College of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, Dezhou University, Dezhou 253023, China School of ...

when NASA introduced red-light emitting diode (LED) devices to help grow potatoes in space,” says Greg Hammer, MD, physician and professor at Stanford University School of Medicine.