para resolver
punto de recompresa：0 -
se queda para el fin del problema 14día 23hora41minuto28segundo
The Alliance issued a total of three draft specification, the main contents of the file, including warranty, color temperature, environmental design principles, connector electrical requirements, mechanical installation parts, etc., and contains a LED lumen maintenance on the assessment of Appendix B.
Appendix A has two different versions, covering electric light sources and optical properties of standard quality specifications. Appendix A simple version of the schedule is known as raw materials, such as beam pattern covers, power consumption, light output and color temperature and other relatively small part of the argument. Complex version of Appendix A contains the system specifications, such as the uniformity of the light requirements of various details of the ground illumination parameters.
U.S. Department of Energy hope to have more buyers to their product specifications in Appendix A combination of the main points were compared, and based on their own values on the draft amendments.
The release of the draft not only contains a few sample parameters, including some of the stringent specifications and requirements, for example, two versions of the draft in Appendix A contains the allowed buyers to purchase the 105W lamps 210W lamps and examples. "This specification is intended to prevent buyers were purchasing because no parameters to create their own specifications," U.S. Department of Energy's Pacific Northwest National Laboratory, senior lighting designer Jason Tuenge said.
U.S. Department of Energy may be in accordance with different types of road improvements and complete the copies of the final technical specifications, but it takes a lot of time and effort, probably due to doping during the many variable factors makes the problem even more complex. However, the release of the specifications document should help commercial and private utilities to regulate their own parameters, and was lighting manufacturers, distributors and lighting designers widely used.
