Retail & Commercial LED Lighting
IES RP-2 Solutions Guide

IES RP-2 & RP-28 Retail Illuminance Standards

Recommended foot-candle levels and CRI requirements by retail zone

Source: IES RP-2 (Retail Lighting), IES RP-28 (Food Merchandising). Always verify with local AHJ — municipal codes may impose stricter requirements.

CRI & Color Temperature Strategy for Retail

How light quality impacts sales, customer experience, and brand perception

Lighting Solutions by Store Type

Design parameters, example configurations, and recommended products for each retail application

🏬 Big-Box Retail & Wholesale Clubs

Big-box stores like Costco, Sam's Club, and Home Depot feature 25–40ft open ceilings spanning 100,000+ sq ft. Legacy 400W metal halide fixtures consume massive energy, require 10+ minute warm-up times, and produce uneven light with dark spots between aisles. The high ceiling height demands high-output fixtures with controlled beam angles to push light down to the merchandise level while maintaining 50–75 fc across vast floor areas.

Design Parameters

Target illuminance	50–75 fc
Min illuminance	30 fc
CRI	≥70
Ceiling height	25–40 ft
CCT	4000K–5000K
Rebate	DLC eligible — $30–$100/fixture

Example Configuration

120,000 sq ft big-box: 80 × 200W UFO High Bay (oH Series) for open areas + 60 × 160W Linear High Bay for racking aisles, DLC rebates cover ~50% material

Recommended Products

UFO High Bay oH Series

100W–240W

Linear High Bay A-LHB-02

160W–320W

🛒 Grocery & Supermarket

Grocery stores demand multi-zone lighting strategies — produce and deli sections need CRI ≥90 to make food look fresh and appetizing, while general aisles prioritize energy efficiency at CRI ≥80. Fluorescent troffers in drop ceilings are the dominant legacy fixture, making LED troffer and panel retrofits a zero-disruption upgrade. The visual impact of high-CRI lighting on produce sales is well-documented: stores report 5–10% produce revenue increases after CRI upgrades.

Design Parameters

Target illuminance	30–75 fc (zone-dependent)
Min illuminance	20–30 fc
CRI (produce/deli)	≥90
CRI (general aisles)	≥80
CCT	3500K–4000K
Retrofit	2x4 troffer drop-in, 0 ceiling modification

Example Configuration

55,000 sq ft supermarket: 200 × Troffer AN-TF24 40W (general aisles) + 80 × Panel A-SFPL 30W (produce/deli, CRI 90) + 30 × Downlight AN-DL 15W (bakery accent)

Recommended Products

Troffer AN-TF24

30–50W

Panel Light A-SFPL

30–50W

Downlight AN-DL

7–40W

🏪 Small Retail & Convenience Store

Convenience stores and small retail operate 18–24 hours daily, making energy efficiency critical to profitability. Bright, uniform lighting (50–75 fc) is essential for both customer safety and loss prevention — well-lit stores experience 30% fewer theft incidents. Most locations have standard 9–10ft drop ceilings with existing 2x4 grid systems, allowing direct troffer-to-LED troffer swap with zero construction. The retrofit typically completes in one overnight shift with no business interruption.

Design Parameters

Target illuminance	50–75 fc
Min illuminance	30 fc
CRI	≥80
Ceiling height	9–10 ft (drop ceiling)
CCT	4000K–5000K
Retrofit	Drop-in troffer/panel, overnight install

Example Configuration

3,500 sq ft convenience store: 24 × Troffer AN-TF24 40W, direct drop-in replacing fluorescent troffers, installed overnight — $3,800/year energy savings

Recommended Products

Troffer AN-TF24

30–50W

Panel Light AN-BP

30–50W

Wall Pack A-WP

26–150W

👗 Fashion & Specialty Retail

Fashion and specialty retail depends on lighting to create brand atmosphere and drive purchasing decisions. CRI ≥90 is non-negotiable — customers need to see true fabric colors, and CRI 70 lighting makes merchandise look dull and washed out. Color temperature matters: 3000–3500K warm white creates an inviting, premium ambiance that encourages browsing. Recessed downlights provide clean architectural lines while accent lighting highlights key displays. The dressing room is the #1 conversion point — flattering, high-CRI lighting directly impacts purchase decisions.

Design Parameters

Target illuminance	75–150 fc
Min illuminance	50 fc
CRI	≥90
Ceiling height	10–14 ft
CCT	3000K–3500K (warm white)
Design	Recessed downlight + accent layers

Example Configuration

8,000 sq ft fashion boutique: 60 × Downlight AN-DL 15W (3000K, CRI 90+) for general + accent, 12 × Downlight AN-DL 7W in dressing rooms

Recommended Products

Downlight AN-DL

7–40W

Panel Light A-SFPL

30–50W

🔨 Home Improvement & Hardware

Home improvement stores combine the challenges of big-box retail (25–40ft ceilings) with standard retail aisles — requiring a dual-fixture strategy. Main aisle areas with high open ceilings need linear high bays for directional light between tall shelving units, while enclosed departments (paint, plumbing, electrical) use standard troffers. The lumber yard and garden center extend to outdoor/semi-outdoor areas requiring weather-rated fixtures. Energy savings are massive due to extended operating hours (6AM–10PM, 7 days) and large fixture counts.

Design Parameters

Target illuminance	50–75 fc
Min illuminance	30 fc
CRI	≥70
Ceiling height	25–40ft (aisles), 9–12ft (departments)
CCT	4000K–5000K
Mix	Linear HB (aisles) + Troffer (departments) + Wall Pack (exterior)

Example Configuration

45,000 sq ft home improvement: 80 × Linear HB 160W (high aisles) + 200 × Panel 40W (sales floor) + 20 × Wall Pack 60W (exterior)

Recommended Products

Linear High Bay A-LHB-02

160W–320W

UFO High Bay oH Series

100W–240W

Panel Light AN-BP

30–50W

Wall Pack A-WP

26–150W

LED vs Legacy: Retail Energy Savings Comparison

Based on $0.12/kWh, 4,380 hrs/year (12 hrs/day × 365 days)

DLC rebates of $10–$100 per fixture further reduce payback period. Most retail retrofits achieve full payback in 9–18 months with utility incentives.