Indoor Architectural Lighting | Ledalite | Genlyte Solutions
User Guide for LEDALITE models including: Arc Form Duo, Form Duo, Duo
Mar 28, 2025 — This application guide highlights the low power density and low Max/Min lighting ratios of the ArcForm Duo family in a variety of different on-center ...
File Info : application/pdf, 14 Pages, 5.68MB
DocumentDocumentArcForm Duo & Pique Duo Application Guide The new generation of Ledalite Architectural Recessed excellence The best mix of performance, options, and aesthetics. With a wide range of standard lumen packages and two distinct optical options with the everyday Silk lens and the low glare MesoOptics lens. The Duo family of architectural recessed luminaires is a truly versatile lighting solution suitable for many applications and budgets. Pique Duo 2 Ledalite ArcForm Duo Guide Introduction · This application guide highlights the low power density and low Max/Min lighting ratios of the ArcForm Duo family in a variety of different on-center spacings, and ceiling heights as a quick reference to its superior performance. · The Pique Duo family's photometric performance will in many cases perform within 5% of ArcForm Duo's photometric performance, including Watts per square foot (W/ft2) and Max/Min ratios. · Both the Silk lens and MesoOptics lens perform well in both W/ft2 and Max/Min footcandle ratios. When very low UGR* values are required, it is recommended that the MesoOptics lens is used which offers <16 UGR and <19 UGR* performance in a variety of commonly used specifications. *Unified Glare Rating (UGR) is calculated in accordance with CIE 117-1995. Reference conditions of 4Hx8Hx1H and reflectances of 70/50/20% have been applied using the procedure described in CIE 190-2010. IES & Photometry Ledalite spec sheets include detailed photometry data for all sizes, lumen packages, and color temperatures. These data tables include hyperlinks to the relevant .ies files (IES) and detailed photometric reports (PDF) to let you meet your project requirements. ArcForm Duo & Pique Duo Application Guide 3 ArcForm Duo & Pique Duo Application guide P4LeL-e2d5a0l3itAeG-Duo-application-guide-en 04/25 page 4 of 14 ArcForm Duo 2x4 Pique Duo 2x4 1x4 2x2 1x4 2x2 PLe-2503AG-Duo-application-guide-en 04/25 page 5 of 14 ArcForm Duo & Pique Duo Application Guide 5 ArcForm Duo 2x2 8'x8' on Center S22-30 Model#/IES File: AF22xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 45 45 44 Max/Min Ratio 1.24 1.12 1.07 W/ft2 0.30 S22-40 Model#/IES File: AF22xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 60 60 59 Max/Min Ratio 1.24 1.12 1.07 W/ft2 0.40 S22-50 Model#/IES File: AF22xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K 6 Ledalite Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 74 74 74 Max/Min Ratio 1.24 1.12 1.07 W/ft2 0.51 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M22-30 Model#/IES File: AF22xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 45 46 46 Max/Min Ratio 1.22 1.08 1.07 W/ft2 0.31 M22-40 Model#/IES File: AF22xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 60 61 61 Max/Min Ratio 1.22 1.08 1.07 W/ft2 0.41 M22-50 Model#/IES File: AF22xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 75 76 75 Max/Min Ratio 1.22 1.08 1.07 W/ft2 0.52 ArcForm Duo 2x2 8'x10' on Center S22-30 Model#/IES File: AF22xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 37 36 36 Max/Min Ratio 1.47 1.24 1.14 W/ft2 0.25 S22-40 Model#/IES File: AF22xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 48 48 Max/Min Ratio 1.47 1.25 1.14 W/ft2 0.34 S22-50 Model#/IES File: AF22xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 60 60 Max/Min Ratio 1.47 1.25 1.14 W/ft2 0.42 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M22-30 Model#/IES File: AF22xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 37 37 37 Max/Min Ratio 1.60 1.29 1.12 W/ft2 0.26 M22-40 Model#/IES File: AF22xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 49 49 Max/Min Ratio 1.60 1.28 1.12 W/ft2 0.35 M22-50 Model#/IES File: AF22xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 61 61 Max/Min Ratio 1.60 1.29 1.12 W/ft2 0.43 ArcForm Duo & Pique Duo Application Guide 7 ArcForm Duo 2x2 10'x10' on Center S22-30 Model#/IES File: AF22xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 30 30 30 Max/Min Ratio 1.70 1.37 1.20 W/ft2 0.21 S22-40 Model#/IES File: AF22xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 40 39 39 Max/Min Ratio 1.70 1.37 1.19 W/ft2 0.28 S22-50 Model#/IES File: AF22xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K 8 Ledalite Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 49 48 Max/Min Ratio 1.70 1.37 1.19 W/ft2 0.35 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M22-30 Model#/IES File: AF22xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 30 30 29 Max/Min Ratio 1.98 1.44 1.20 W/ft2 0.22 M22-40 Model#/IES File: AF22xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 40 39 39 Max/Min Ratio 1.98 1.44 1.20 W/ft2 0.29 M22-50 Model#/IES File: AF22xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 49 49 Max/Min Ratio 1.98 1.44 1.20 W/ft2 0.36 ArcForm Duo 2x2 12'x12' on Center S22-30 Model#/IES File: AF22xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 23 22 21 Max/Min Ratio 2.36 1.74 1.42 W/ft2 0.13 S22-40 Model#/IES File: AF22xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 30 29 28 Max/Min Ratio 2.35 1.74 1.42 W/ft2 0.18 S22-50 Model#/IES File: AF22xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 37 36 34 Max/Min Ratio 2.36 1.75 1.42 W/ft2 0.23 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M22-30 Model#/IES File: AF22xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 23 22 21 Max/Min Ratio 2.90 1.97 1.49 W/ft2 0.14 M22-40 Model#/IES File: AF22xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 31 29 28 Max/Min Ratio 2.89 1.97 1.49 W/ft2 0.18 M22-50 Model#/IES File: AF22xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 39 37 35 Max/Min Ratio 2.90 1.97 1.49 W/ft2 0.23 ArcForm Duo & Pique Duo Application Guide 9 ArcForm Duo 2x4 8'x8' on Center S24-40 Model#/IES File: AF22xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 60 60 59 Max/Min Ratio 1.26 1.13 1.08 W/ft2 0.40 S24-50 Model#/IES File: AF22xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 75 75 74 Max/Min Ratio 1.26 1.13 1.08 W/ft2 0.52 S24-60 Model#/IES File: AF22xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K 10 Ledalite Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 89 89 88 Max/Min Ratio 1.26 1.13 1.08 W/ft2 0.63 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M24-40 Model#/IES File: AF22xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 62 62 Max/Min Ratio 1.19 1.07 1.07 W/ft2 0.40 M24-50 Model#/IES File: AF22xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 77 78 77 Max/Min Ratio 1.19 1.07 1.07 W/ft2 0.51 M24-60 Model#/IES File: AF22xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 92 93 92 Max/Min Ratio 1.19 1.07 1.07 W/ft2 0.63 ArcForm Duo 2x4 8'x10' on Center S24-40 Model#/IES File: AF24xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 48 48 Max/Min Ratio 1.49 1.26 1.14 W/ft2 0.34 S24-50 Model#/IES File: AF24xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 61 60 Max/Min Ratio 1.49 1.26 1.15 W/ft2 0.43 S24-60 Model#/IES File: AF24xxSTL93560Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 73 72 72 Max/Min Ratio 1.49 1.26 1.15 W/ft2 0.53 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M24-40 Model#/IES File: AF24xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 50 50 50 Max/Min Ratio 1.53 1.23 1.09 W/ft2 0.33 M24-50 Model#/IES File: AF24xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 63 63 62 Max/Min Ratio 1.53 1.23 1.09 W/ft2 0.43 M24-60 Model#/IES File: AF24xxSTL93560Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 75 75 74 Max/Min Ratio 1.53 1.23 1.09 W/ft2 0.52 ArcForm Duo & Pique Duo Application Guide 11 ArcForm Duo 2x4 12'x12' on Center S24-50 Model#/IES File: AF24xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 38 36 35 Max/Min Ratio 2.41 1.78 1.45 W/ft2 0.23 S24-60 Model#/IES File: AF24xxSTL93560Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 45 43 41 Max/Min Ratio 2.42 1.78 1.45 W/ft2 0.28 S24-70 Model#/IES File: AF24xxSTL93570Axxxxxx CRI/CCT: CRI 90+, 3500K 12 Ledalite Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 52 50 48 Max/Min Ratio 2.41 1.78 1.45 W/ft2 0.33 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M24-50 Model#/IES File: AF24xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 39 37 36 Max/Min Ratio 2.81 1.91 1.43 W/ft2 0.23 M24-60 Model#/IES File: AF24xxSTL93560Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 47 45 43 Max/Min Ratio 2.81 1.91 1.43 W/ft2 0.28 M24-70 Model#/IES File: AF24xxSTL93570Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 55 52 49 Max/Min Ratio 2.81 1.91 1.44 W/ft2 0.33 ArcForm Duo 1x4 8'x10' on Center S14-30 Model#/IES File: AF14xxSTL93530Axxxxxx CRI/CCT: CRI 90+, 3500K S14-40 Model#/IES File: AF14xxSTL93540Axxxxxx CRI/CCT: CRI 90+, 3500K S14-50 Model#/IES File: AF14xxSTL93550Axxxxxx CRI/CCT: CRI 90+, 3500K Silk 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 37 36 36 Max/Min Ratio 1.48 1.25 1.14 W/ft2 0.26 Silk 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 49 48 Max/Min Ratio 1.48 1.25 1.14 W/ft2 0.35 Silk 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 61 60 Max/Min Ratio 1.48 1.25 1.14 W/ft2 0.45 Application Room 20'x20' calculation zone in a 50'x50 room Reflectances Work Plane Ceiling 80% Walls 50% Floor 20% 2'-6" A.F.F. M14-30 Model#/IES File: AF14xxSTL93530Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 3000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 37 37 37 Max/Min Ratio 1.65 1.25 1.09 W/ft2 0.26 M14-40 Model#/IES File: AF14xxSTL93540Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 4000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 49 49 49 Max/Min Ratio 1.65 1.25 1.10 W/ft2 0.35 M14-50 Model#/IES File: AF14xxSTL93550Qxxxxxx CRI/CCT: CRI 90+, 3500K MesoOptics 5000lm nominal Ceiling Height 8' 9' 10' Avg. Footcandle 61 61 61 Max/Min Ratio 1.65 1.25 1.09 W/ft2 0.45 ArcForm Duo & Pique Duo Application Guide 13 © 2025 Signify Holding. All rights reserved. The information provided herein is subject to change, without notice. Signify does not give any representation or warranty as to the accuracy or completeness of the information included herein and shall not be liable for any action in reliance thereon. The information presented in this document is not intended as any commercial offer and does not form part of any quotation or contract, unless otherwise agreed by Signify. All trademarks are owned by Signify Holding or their respective owners. PLe-2503AG-Duo-application-guide-en 04/25 Signify North America Corporation 400 Crossing Blvd, Suite 600 Bridgewater, NJ 08807 Telephone 800-555-0050 Signify Canada Ltd. 281 Hillmount Road, Markham, ON, Canada L6C 2S3 Telephone 800-668-9008 www.ledalite.com