The February 2022 edition of ElectroIndustry Magazine, published by the National Electrical Manufacturers Association (NEMA), included this article regarding the replacement of high-intensity discharge (HID) lamps with light-emitting diode (LED) equivalents.
“Currently, there are significant variations in the luminous flux (light output) of LED lamps claiming to be equivalent to a particular HID lamp wattage,” notes author Dr. James M. Gaines, standards and regulations professional, Signify North America Corp. “When this happens, customer confusion and dissatisfaction can ensue and result in an unlevel playing field for manufacturers. NEMA provides value to the end-user and the manufacturing community with recommendations for when this scenario occurs.”
NEMA LL-10, Replacing HID Lamps with LED Lamps: Light Output Equivalency Claims, which applies to omnidirectional lamps, describes a method for claiming equivalency of LED lamps to the HID lamps they replace.
“The intention is for manufacturers to use LL-10 when they prepare their equivalency claims,” Gaines says.
