LBLR · retroⒶRCH-P1 ECO

GT8 drop-in. TAA. Back-lit.

Drop-in retrofit panel for legacy GT8-aperture / 2GT8 lensed troffers. Back-lit (NOT edge-lit) PMMA diffuser eliminates hot-spotting. 3-WATTselect × 3-CCTselect dip-switch = 27 field configurations from 3 catalog SKUs. 125 LM/W flat. TAA Compliant · Made in Mexico.

Sizes: 1×4 · 2×2 · 2×4 Lumens: Up to 5,500 lm (LBLR24 @ 44W) Efficacy: 125 LM/W · DLC Listed

Ideal Applications

Office Space

Healthcare

School

3-WATTSELECT

3-CCTSELECT

retroⒶFIT

TAA COMPLIANT

LBLR24 retroⒶRCH-P1 · 2×4 back-lit panel retrofit · 5,500 lm @ 44W · PMMA prismatic diffuser

LBLR22 retroⒶRCH-P1 · 2×2 back-lit panel retrofit · drop-in for legacy 2GT8 lensed troffer

cULus

DLC Listed

RoHS

Damp Location

Model Specifications

Download Data Sheet

Application

Drop-In Retrofit · Office · Healthcare · School · Retail

Construction

SPCC Steel + Al Trim PMMA back-lit diffuser · white finish

Optics · 120° Back-Lit

120°

IP Rating

IP40 Damp DampGuard™ · -4°F to 104°F

Warranty

5 yr · 50k hr Limited Liability

Watt	Lumens	lm/W	CCT	Voltage

★ Default WATTSELECT setting · ★ on HIGHEST WATT per datasheet footnote 1 (max lumen output @ 5000K). 3-WATTselect dip-switch (3 wattage steps per SKU family) · 3-CCTselect dip-switch (3500K / 4000K / 5000K) · default CCT = 5000K per datasheet footnote. Lumens published per datasheet pg 2 model spec table · IES bundle currently covers 3500K only (factory data on request for 4000K + 5000K + intermediate watts). CRI >80 R9>0 · 0-10V dimming with Dim-to-Off · >0.9 PF · <20% THD · 1kV surge protection · 95.8% lumen maintenance @ 6,000 hrs (LM-80) · L70 @ 50,000 hrs · DLC Listed (supplier-rated Premium-equivalent · ALG markets at Listed tier) · UL Damp Location Listed · 5-yr limited warranty · Color shift <180K over 50k-hr per ANSI C78.377-2017.

Dimensions

LBLR24 · 2×4 panel · 45.91" × 22.05" × 1.42" (1166mm × 560mm × 36mm) · 7.10 lb (3,220 g) · drop-in for legacy 2GT8-aperture lensed 2x4 troffer · supplier dimensions

Drop-In Retrofit Spotlight

Same-aperture drop-in for legacy GT8-aperture / 2GT8 lensed troffers.

Three sizes (LBLR14 1×4 · LBLR22 2×2 · LBLR24 2×4) × three WATTselect dip positions × three CCTselect dip positions = 27 install configurations from 9 catalog SKUs. Pick the size that matches the existing fluorescent troffer aperture · drop in the LBLR retrofit kit with the included Door Kit hardware · set WATT + CCT on the driver dip-switch · re-energize. No ceiling demolition. No T-bar grid modification. No drywall patch. Live readout below shows the resolved performance + the existing fluorescent fixture being replaced.

Size · 1 of 3

WATTselect · dip-switch position

CCTselect · dip-switch position

Resolved Configuration

LBLR24-33MXP1

Lumens

5,500 lm

Efficacy

125 LM/W

Voltage

120-277V

Replaces: legacy 2GT8-aperture lensed 2×4 troffer
Drop-in kit ships with Door Kit (A) or Door Kits (A+B) hardware · Sensor-Ready Standard / /SRR Recessed / /SRT Trim variants available · constⒶNT-Ready + contrⒶLS-Ready · TAA Compliant for federal/government RFPs · DLC Listed

27 install configurations from 9 catalog SKUs · max 5,500 lm @ 125 LM/W · drop-in compatibility for the ~100M+ legacy GT8-aperture / 2GT8 lensed troffer installed base in US commercial buildings.

planoRCH Production · TAA Made in Mexico

Inside the Factory.

Robotics handle every precision station — driver insertion through panel framing. Humans handle every QC pass. The floor behind QuickShip and the /TAA Made-in-Mexico stamp.

Highlights & Features

retroⒶRCH-P1 wins the federal-RFP retrofit brief.

Seven highlights — TAA Made-in-Mexico, back-lit PMMA diffuser, 95.8% lumen maintenance @ 6,000 hrs, 9 configs per SKU, DLC Listed @ 125 LM/W, drop-in for GT8 / 2GT8, and the 11-accessory contrⒶLS + constⒶNT ecosystem.

— Hero Highlight · Procurement Unlock

TAA Compliant. Made in Mexico. Federal RFPs unlocked.

Mexico is a Trade Agreements Act–designated country — retroⒶRCH-P1 ships qualified for GSA, DoD, VA, USPS, federal courthouse, K-12, state, and municipal RFPs that lock out China-direct retrofit panels.

Back-Lit Construction

Back-Lit, not edge-lit. 95.8% LM @ 6,000 hrs.

Back-lit PMMA diffuser — LEDs distributed across the panel back, not crammed into a side-rail light guide. Uniform 120°, no halo edges, no center dark spot. 95.8% lumen maintenance @ 6,000 hrs LM-80 · L70 @ 50,000 hrs.

Field Configurability

9 catalog SKUs. 81 install configurations.

3 sizes × 3-WATTSELECT × 3-CCTSELECT × 3 sensor-ready variants — 9 catalog SKUs cover 81 field configurations. /W## + /C## factory-locks for Title 24 § 130.1 + NYC LL97 compliance baked in at order.

DLC Listed · Efficacy

125 LM/W constant. Matches the Premium floor.

DLC Listed at 125 LM/W constant — matches the DLC Premium efficacy floor exactly. Real LM-79 photometry verifies 122–131 LM/W across the LBLR14/22/24 IES bundle. Clears utility rebate + performance-based contract thresholds.

Drop-In Retrofit · legacy GT8-aperture / 2GT8

Same-aperture drop-in. No ceiling demolition.

The IES LUMCAT field explicitly cites legacy GT8-aperture / 2GT8 lensed troffers as the replacement target. Same-aperture drop-in, no ceiling demolition, no T-bar grid modification — ~3 minutes per fixture.

0-10V Dim-to-Off

0% to 100% continuous. No 10% dim floor.

0-10V Dim-to-Off — true 0% off via the 0-10V analog control loop, not a 10% glow floor. Smooth, flicker-free across the full envelope · PF > 0.9 · THD < 20%. Clears California Title 24 § 130.1 area-controls dim-to-off scenarios.

constⒶNT + contrⒶLS Bridge

11 accessories. 6-device ⒶCS lineup. Broadest in ALG.

Every retroⒶRCH-P1 ships contrⒶLS-Ready. 3 constⒶNT EM units · 2 Bi-Level sensors · 6-device ⒶCS Bluetooth Mesh lineup · 50WM-ⒶCS kinetic battery-free switch — 11 accessories shared with the planoⒶRCH ecosystem.

MSP-BLS · PIR Bi-Level standalone sensor head

MSP-ACS · 8FT fixture-mount ⒶCS PIR sensor

MSP-HTI-NLC · SILVAIR Bluetooth Mesh PIR sensor

contrⒶLS

Total Adaptive Control.

Every retroⒶRCH-P1 panel ships contrⒶLS-Ready on the /SR sensor port — three commissioning paths from a single fixture: Bi-Level standalone for drop-in code compliance, ⒶCS Bluetooth Mesh, or SILVAIR enterprise mesh. All DLC NLC qualified for Title 24 § 130.1 rebate adders.

Two-stage hardwired bi-level — full output on occupancy, dimmed standby on vacancy. No commissioning, no gateway, no app. PIR (MSP-BLS) or Microwave (MSM-BLS) · 13′ fixture-mount.

Discover contrⒶLS →

Photometric Distribution

Beam shape, rendered from the LM-79 IES file.

Plotted directly from the LM-79 measured IES candela tables — 3 SKUs at default WATT · 3500K. Leading Testing Laboratories, Feb 2025.

Size

Peak Candela

1,877 cd

Total Lumens

5,426 lm

131.1 LM/W measured @ 41.4W actual · datasheet headline 125 LM/W constant @ 44W nominal

Distribution & DLC Listing

120° BACK-LIT PMMA WHITE DIFFUSER CRI >80 · R9>0 DLC LISTED

Rotationally-symmetric back-lit beam — LEDs distributed across the panel back, not crammed into a side-rail light guide. Uniform 120° distribution with no halo edges, no dark center, no visible LED hot-spots. PMMA white diffuser delivers a glare-free wash with 95.8% lumen maintenance @ 6,000 hrs LM-80. DLC Listed at 125 LM/W constant — matches the DLC Premium efficacy floor exactly (supplier rates the panel as Equivalent DLC Premium · ALG markets at the Listed tier conservatively per the May 2026 marketing call).

Test Lab Source

IESNA LM-79 / LM-80 · Leading Testing Laboratories
LBLR24 44W 3500K_IESNA95.IES · LM-79 issued 2025-02-24

Download IES Bundle · 3 files · LBLR14 / LBLR22 / LBLR24 default-WATT · 3500K

Accessories

Engineered Accessories

Engineered to preserve DLC Listed rebate eligibility — every contrLS sensor is DLC NLC-qualified, every constNT emergency driver is UL 924 listed.

Build Your Model

Configure Your retroⒶRCH-P1

Pick Dimensions, then WATTselect, then CCTselect. Each selection unlocks the next field. SKU resolves live as you go. LBLR ships all 3 sizes; DIP-switches are field-set at install. Required fields marked with *. See the legend below for ★ / QS / WB meanings.

0 of 3 required selected

Required

Build SKU · ★ defaults · WB locks

Dimensions* —

3-WATTselect · ship-default (non-default ships as WB factory lock)* —

3-CCTselect · ship-default (non-default ships as WB factory lock)* —

Sensor-Ready Port (adds /SR suffix · enables fixture-mount contrⒶLS sensors) —

★ Factory-default ship configuration

QuickShip · 3-5 day lead

Made-to-Order · 4-6 week lead

Workbench · 1-3 week lead (dedicated factory lock)

Estimates · not guarantees · subject to availability · confirm before committing.

Optional

Add accessories · 15 across 3 categories

constNT · Emergency Battery (BOM add-on · per datasheet pg 3-4) —

contrLS · Sensor / Controller (11 options · requires /SR for fixture-mount) —

Wiring Whip (LBLR24 only · contractor labor save) —

Live Preview LBLR24 retroⒶRCH-P1 · 2×4 back-lit retrofit panel · default Live Preview · swaps with Dimension chip

Resolved SKU

LBLR[14|22|24]-[##W][/C##][/SR]

            
            — deriving ship tier —

Max Lumens

—

Efficacy

—

WATTselect

—

CCTselect

—

Form Factor

—

Lifetime

L70 @ 50,000 hrs

Warranty

5 yr · 50k hr

Compliance

DLC Listed · IP40 Damp · TAA Mexico

Configuration incomplete. Pick Dimensions (Step 1) + WATTselect (Step 2) + CCTselect (Step 3) to unlock pricing & submittal generation.

Pricing & Availability Generate Submittal PDF Request a Layout

Documentation

Documentation & Resources

Everything specifiers, contractors, and project managers need to spec, install, and certify retroⒶRCH-P1 — datasheet, LM-79 IES bundle, and the project submittal generator. Installation Guide + SellSheet pending the next collateral drop.

PDF 3.9 MB · 4 pages

Datasheet LIVE

Complete LBLR retroⒶRCH-P1 specs — 3 sizes, 3-WATT × 3-CCT dip-switch, DLC Listed, TAA Made-in-Mexico, and the 11-accessory contrⒶLS lineup.

Download Rev. 2025-02

ZIP 3 IES files · LM-79

IES Photometric Bundle LIVE

Leading Testing Laboratories LM-79 photometric files for the default-WATT 3500K position on every size — LBLR14, LBLR22, LBLR24. Intermediate watts, CCTs, and sensor variants are factory data on request.

Download LM-79 issued 2025-02

PDF URL pending

Installation Guide PENDING

Step-by-step retrofit kit install — Door Kit hardware per size, spring-clip ceiling-grid attachment, same-aperture drop-in for legacy GT8 / 2GT8 troffers, dip-switch commissioning, and constⒶNT EM driver wiring.

Pending supplier drop Carry-forward

PDF URL pending

Sell Sheet PENDING

Architectural-spec sales-rep deck — the 3-hammer story (TAA federal RFP unlock, back-lit 95.8% LM @ 6,000 hrs, 9-config 1-SKU consolidation), and the bid-sheet positioning ALG sales reps use.

Pending supplier drop Carry-forward

Generated PDF · per SKU

Submittal Generator PENDING

Generate a project-stampable submittal package from your current configuration — SKU, photometric data, dimensions, accessory adders, and certifications on a single PDF.

Pending template build Reads §9 SKU

Quick Links

Rebate Center · DLC Listed Warranty Statement (5-Year)

      DATASHEET + IES BUNDLE · LIVE. Installation Guide / Installation + SellSheet PDFs and the Submittal Generator template are pending the next ALG collateral drop and the same submittal-template build blocker that affects Astra-I and Spectra-I. Ship-list updates published to memory reference_retroarch_p1_workdrive_urls.md.
    

retroⒶRCH Family

Three retroⒶRCH paths. One retrofit answer.

retroⒶRCH-P1 is the back-lit panel path — same-aperture drop-in for legacy GT8 / 2GT8 lensed troffers. retroⒶRCH-L1 is the linear strip retrofit path. retroⒶRCH-T1 is the door-kit troffer retrofit path. Same factory, same TAA Made-in-Mexico procurement story.

LBLR · PRO PANEL You Are Here LBLR retroⒶRCH-P1 · 2×4 back-lit panel retrofit · You Are Here

LBLR · retroⒶRCH-P1 ECO

retroⒶRCH-P1

planoⒶRCH PRO-tier back-lit panel retrofit for the office / school / healthcare / retail interior. 3 sizes (1×4 / 2×2 / 2×4) × 3-WATTSELECT × 3-CCTSELECT · 9 catalog SKUs · 81 install configs · same-aperture drop-in for legacy GT8-aperture / 2GT8 lensed troffers (per IES LUMCAT evidence) · TAA Compliant Made-in-Mexico · 11-accessory contrⒶLS lineup. The product on this page.

2,200-5,500 lm · 125 LM/W · DLC Listed · TAA Mexico · 5-yr/50k-hr

Currently viewing

LLSR · PRO STRIP ★ RECOMMENDED PAIR

LLSR · retroⒶRCH-L1 PRO

retroⒶRCH-L1

The retroⒶRCH PRO-tier linear strip retrofit path — for projects with existing T8 / T12 fluorescent strip housings (parking decks · mech rooms · grocery back-of-house · industrial bay). 3 lengths (2 / 4 / 8 FT) · 4 field-swappable optics · 6063 Aluminum + IP40 Damp + 7-yr / 75,000-hr warranty · same TAA + Made-in-Mexico procurement story as P1. Specify together for buildings with mixed troffer + strip retrofit scope.

2,500-12,500 lm · 130 LM/W · DLC Premium · 7-yr/75k-hr

View product →

LPVR · TROFFER RETROFIT

LPVR · retroⒶRCH-T1 ECO

retroⒶRCH-T1

Door-kit retrofit for existing center-basket fluorescent troffers staying in place — 10-15 min install, no fixture removal. DLC Premium · 1 kV surgeⒶRMOR + thermalⒶRMOR · same TAA Mexico procurement story as retroⒶRCH-P1. Specify together for buildings mixing back-lit panel + center-basket troffer retrofit scope.

3,900-6,500 lm · 130 LM/W · DLC Premium · 7-yr/75k-hr

View product →

Round Out the Project

For the complete commercial-interior retrofit.

retroⒶRCH-P1 handles the troffer retrofit. These cross-line fixtures handle the rest — outdoor parking + entry (Symmetry), the linear-strip half of mixed retrofit scopes (retroⒶRCH-L1), emergency egress (Heritage), and exit signage (Pathfinder). Specify together for one coherent commercial-interior package.

CITYRCH

Post-Top · PRO+

Symmetry

Spec-grade post-top for school + hospital parking lots, office-park perimeters, and commercial drive lighting. NEMA II/III/V optics, contrLS-Ready, IP66.

4,000-16,000 lm · IP66 · NEMA II/III/V

View product →

LAMPARRCH

Linear Strip Retrofit · PRO

retroRCH-L1

The retroⒶRCH PRO-tier linear-strip retrofit sibling — for the half of the building still on T8 / T12 fluorescent strip housings (parking decks, mech rooms, grocery back-of-house). Specify alongside P1 for mixed troffer + strip retrofit scopes.

2,500-12,500 lm · 130 LM/W · DLC Premium · 7-yr/75k-hr

View product →

CONSTNT

Emergency Battery · ECO

Heritage

Wall-mount LED emergency unit with self-test, code-compliant 90-min runtime. Pairs with retroⒶRCH-P1 for commercial-interior code compliance — NFPA 101 Life Safety, IBC, and the local AHJ’s emergency egress requirements for offices, healthcare corridors, classrooms, and retail floors.

2-head adjustable · 90-min runtime · Self-test diagnostics

LCNP-series LED exit sign — single/double-face, universal-mount, 90-min battery. The exit-signage half of the commercial-interior code package alongside Heritage. Required by NFPA 101 over every exit door + 100ft of egress corridor.

Single/double face · Universal mount · 90-min battery

View product →

Specifier Support

Retrofit specs in 48 hours. One regional rep.

Five US warehouses ship retroⒶRCH-P1 SKUs in 3-5 days from Mexico-made stock. Retrofit-take-off + photometric layout requests come back inside 48 hr — we convert your existing legacy GT8-aperture / 2GT8 troffer schedule into LBLR14 / LBLR22 / LBLR24 same-aperture replacements + confirm 1:1 lumen + DLC Listed rebate eligibility before you commit. Quotes reply same business day.

US Warehouses

48 hr

Layout SLA

Same-Day

Quote Reply

Find a Rep Contact Sales

Great Rebates

Stack the rebates on every retrofit.

DLC Listed across the LBLR family at 125 LM/W constant — matches the DLC Premium efficacy floor exactly (supplier rates Premium-equivalent · ALG markets at Listed tier). Clears the utility-rebate floor for federal, state, and IOU programs that typically offset 20-40% of project cost. Pair with TAA Compliant Made-in-Mexico federal procurement eligibility (§4) and the 5-yr / 50,000-hr warranty.

2,400+

Active Programs

20-40%

Project Offset

DLC Listed

All retroⒶRCH-P1 SKUs

Open Rebate Center