There are many websites that are useful for finding information about LED lighting. The following are a few that may be of interest to you.
The U.S. Department of Energy (DOE) has made a long-term commitment to provide national leadership to advance research, development, and market introduction of solid-state lighting. DOE’s support of solid-state lighting is essential to ensure the development of energy-efficient, high performing LED technology—a focus that, without DOE leadership, might be lost on the path to commercialization.
The ENERGY STAR program for Solid-State Lighting establishes criteria that manufacturers can use to promote qualifying products and gives consumers confidence that products meet strict efficiency and performance levels established by DOE. Both residential and commercial products are covered.
Approved Method for the Electrical and Photometric Testing of Solid-State Lighting Devices Specifies a standard test method for measuring the photometric properties of SSL devices, allowing calculation of luminaire efficacy. Electronic copies may be purchased online through the IES store.
Specification for the Chromaticity of Solid-State Lighting Products Specifies recommended chromaticity (color) ranges for white LEDs with various correlated color temperatures (CCTs). Available free as an electronic download.
Approved Method for Measuring Lumen Depreciation of LED Light Sources Specifies a standard method for measuring the lumen depreciation of LEDs, which allows calculation of LED lifetime. Electronic copies may be purchased online through the IES store.
Independently tests and provides unbiased information on the performance of commercially-available SSL products.
SSL Quality Advocates is a voluntary pledge program to assure that LED lighting is represented accurately as it reaches the market. SSL Quality Advocates pledge to use the Lighting FactsCM to document the performance of products they manufacture, sell, distribute, or promote, based on industry-standard testing.
The California Energy Commission (CEC) is the state’s primary energy policy and planning agency whose major responsibility includes promoting energy efficiency through appliance and building standards in order to reduce California’s energy consumption.