Field News

DesignLights Consortium Releases Update to Technical Requirements

Views : 414
Author : IES
Update time : 2021-04-23 15:21:11
The DesignLights Consortium (DLC) released the second draft of its updated Technical Requirements for Horticultural Lighting (Version 2.1). Scheduled to take effect on July 1, the proposed changes would establish Qualified Products List (QPL) eligibility for three additional product types including DC-powered fixtures, externally supplied actively cooled horticultural fixtures and LED replacement lamps. The DLC is proposing changes to specifications related to all three product types in response to stakeholder comments received last fall. Comments on the proposal are due by April 9.

The proposed V2.1 policy defines externally supplied actively cooled horticultural fixtures as those in which liquid, often water or a water/glycol solution, flows through input and output ports of each fixture in the system, channeled through a cooling plate or other heat exchanger within the fixture. In adding these products to its Horticultural Lighting Program, the DLC provides descriptions of how to test and report on them to ensure performance comparable to products listed under previous versions of the policy.

Changes related to these fixtures in response to comments the DLC received following release of the first draft of V2.1 last fall include removal of requirements specific to the cooling system and not measurable at the fixture level, and the following new proposals:

  • New self-protect functionality requirements
  • Revisions to requirements for testing and reporting with respect to fixture-level allowable operating conditions for cooling systems
  • Reporting of image showing photosynthetic photon efficacy (PPE) as a function of inlet fluid temperature
Check it out here Article source from Illuminating Engineering Society
Know more about lighting fixtures, welcome to contact us at marketing@yuanglighting.com

 
Related News
Read More >>
LightingEurope Advocates for All Building Renovations to Include an Upgrade of Lighting Installations LightingEurope Advocates for All Building Renovations to Include an Upgrade of Lighting Installations
Jul .02.2021
With its Renovation Wave Initiative (RWI), the European Union (EU) intends to at least double the rate of building renovations in Europe over the next 10 years. In doing so, the European Commission hopes to reignite Europe’s economy for a post-pandemic wo
The Water Spraying Test of Yuang's Canopy Light The Water Spraying Test of Yuang's Canopy Light
Apr .28.2021
Normally there are two types of waterproofing, one is structural waterproofing, the other is adhesive waterproofing. The best and most used method is combination of both.
NEMA Releases LED Replacement Standard NEMA Releases LED Replacement Standard
Apr .23.2021
The National Electrical Manufacturers Association (NEMA) has published NEMA LL 10-2020 Replacing HID Lamps with LED Lamps: Light Output Equivalency Claims. This new standard assists manufacturers in preparing HID equivalency claims for LED products replac
Why LED thermal pads are important? Why LED thermal pads are important?
Apr .20.2021
It is essential to separate the excessive heat produced from the LED devices because semiconductor is only designed to handle a certain amount of heat.