LED Desk Lamp
Applicable To:
66157 (A3)
Marketing Claim Verified by UL Solutions
Color Rendition Rating DIAMOND based on IES TM- 30-20 Fidelity Intent and Low Blue Light
Verification Method
The product is measured with an integrating sphere according to ANSI/IES LM-79, Approved Method: Optical And Electrical Measurements Of Solid-State Lighting Products (LED and OLED) and the color rendition calculation is based on ANSI/IES TM-30-20, IES Method For Evaluating Light Source Color Rendition. The following criteria is used to rate the performance, and comes from the Fidelity design intent of TM-30-20 and CIE 13.3-1995: Diamond: Rf ≥ 95, Rf,h1≥ 90, Ra ≥ 95, R9 ≥ 90 Platinum: Rf ≥ 90, Rf,h1≥ 85, Ra ≥ 90, R9 ≥ 50 Gold: Rf ≥ 85, Rf,h1≥ 85, Ra ≥ 90, R9 ≥ 50 Radiance Ratio is measured per IEC 62471:2006 Ed. 1.0, Photobiological Safety Of Lamps And Lamp Systems. The radiance ratio of light in the range 415 nm-455 nm versus a total range of 400 nm-500 nm is graded as follows: Diamond: ≤ 48% Platinum: ≤ 50% Gold: ≤ 52% Spectral Difference (SD) is measured per ANSI/IES LM-79. SD refers to the difference in radiometric power between the artificial light source and its reference for visual light from 400 nm to 699 nm. Performance is graded as follows: For LED Chips: Diamond: 425~474 nm: ≤ 25%, 630~699 nm: ≤ 35% Platinum: 425~474 nm: ≤ 40%, 630~699 nm: ≤ 50% Gold: Not required For LED Lamps and Luminaires: Diamond: 400~419 nm: ≤ 93%, 420~454 nm: ≤ 35%, 455~524 nm: ≤ 20%, 525~569 nm: ≤ 10%, 570~599 nm: ≤ 10%, 600~629 nm: ≤ 15%, 630~699 nm: ≤ 35% Platinum: 400~419 nm: Not required, 420~454 nm: ≤ 65%*/≤ 50%**, 455~524 nm: ≤ 20%, 525~569 nm: ≤ 10%, 570~599 nm: ≤ 10%, 600~629 nm: ≤ 15%, 630~699 nm: ≤ 55% * For CCT 1800K~3500K, ** For CCT 4000K~6500K Gold: Not required Blue light emissions categorized as “Exempt”, or Clause 6.1.2: Risk Group 1 per IEC 62471:2006 Ed. 1.0, satisfy Verification of low blue light performance as follows: Diamond: Exempt Platinum: Risk Group 1 Gold: Risk Group 1
What is UL Verification?
UL Verification is an objective, science-based assessment that confirms the accuracy of marketing claims. Our independent assessment process scrutinizes the validity of specific advertising or promotional statements, giving you a way to separate verified fact from fiction.