How to interpret LED lamp data

LED lamps are now rapidly replacing conventional incandescent lamps and compact fluorescent lamps (CFLs) in domestic and commercial lighting. Understanding the data that is presented with respect to lamp performance and operating life is the key to making informed product choices. Data on LED lamps is to be found on their packaging, or in data sheets. Some of the information is based on verifiable facts but some marketing claims may not be based on sound engineering principles. A number of major global brands are now competing for a share of the general LED lighting market. Prices are falling as the technology matures, manufacturing process become more refined and the economics of high volume manufacturing and supply chain management come into play.