Configured SKU
LWRL4-3550CS
Generated
ARCHIPELAGO
Lighting Group
Catalog Number
LWRL4-3550CS
Project
Type
Catalog #
Prepared By
Notes
Date

LWRL · Waymark

Commercial-grade linear stairwell & wraparound · 4-WATTselect × 4-CCTselect dip-switch · 32 field configurations from 2 catalog SKUs · 125-135 LM/W · DLC Dual-Listed (Stairwell + Linear Ambient) · 7-Year / 75,000-Hour warranty
LWRL Waymark LWRL4-3550CS · 4-foot linear stairwell/wraparound · cold-rolled steel housing with 6063 aluminum frame and heat-resistant frosted prismatic diffuser
Lumens
6,750lm
Wattage
50W
Voltage
120-277V
CCT
5000K
CRI
> 80
Efficacy
135LM/W
DLC Dual-Listed
4-WATTselect dip-switch (LWRL2: 20/25/30/35W · LWRL4: 35/40/45/50W) · 4-CCTselect dip-switch (3000/3500/4000/5000K) · Stairwell + Linear Ambient dual rebate eligibility · contrLS-Ready 17-SKU Bi-Level / CS / SILVAIR ecosystem
Approved by
Date
archipelagolighting.com · LWRL Waymark submittal · Specifications subject to change
Rev. 2026-05 · Page 1 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LWRL4-3550CS

Specifications

LWRL Waymark · LWRL2 (2 FT) / LWRL4 (4 FT) · 20-50W
Construction
HousingCold-rolled steel construction · powder-coated white finish · surface-mount for stairwell wall, corridor ceiling, parking-deck overhead, and wraparound applications
Frame6063 aluminum frame · integrated end-caps · tamper-resistant captive screws
DiffuserHeat-resistant frosted prismatic PC diffuser · uniform 113° wide-beam ambient distribution · even wall-wash output
IngressIP20 indoor · UL Damp Location rated (DampGuard™)
Operating Temp-4°F to +104°F (-20°C to +40°C) ambient
LED & Optics
LED SourceHigh-density 2835 SMD LEDs · LM-80 compliant · single-array linear engine sized per class
CCT Options4-CCTselect dip-switch · 3000K / 3500K / 4000K / 5000K ★
CRI> 80 (commercial-ambient tier · heads up: not 90+ spec-grade)
Distribution113° wide-beam Lambertian · even wraparound ambient distribution · zero upward emission
Lumen MaintenanceL70 @ 50,000 hrs (LM-80) · 75,000-hr warranty coverage · 7-yr field warranty
Lumen OutputLWRL2: 2,500-4,375 lm (20-35W) · LWRL4: 4,725-6,750 lm (35-50W) · 125-135 LM/W across the dial
Driver & Electrical
Voltage120-277V Universal · intelligent constant-current driver · 347/480V via step-down transformer accessory
4-WATTselect4-position DIP switch · LWRL2: 20/25/30/35W · LWRL4: 35/40/45/50W · 16 configs per class
4-CCTselect4-position DIP switch · 3000K / 3500K / 4000K / 5000K · 32 total field configs across 2-SKU catalog
Power Factor> 0.9 non-flicker
THDLow Total Harmonic Distortion · FCC Title 47 Part 15B
Starting Time< 0.5 seconds
Dimming0-10V continuous · flicker-free · contrLS Bluetooth Mesh networked dimming optional via accessory
Controls & Connectivity
Bi-LevelMSM-BLS (Microwave) + MSP-BLS (PIR) · 13FT max mount · commissioned via RM-06S IR Remote
contrLS by CS3 PIR sensors (8/20/40FT) + 2 controllers (fixture / J-Box hub) + kinetic wall switch · Bluetooth Mesh · DLC NLC qualified
contrLS by SILVAIR5 NLC variants (MSM/MSP HT + SR + MSX-LV5 controller) · enterprise Bluetooth Mesh · SaaS commissioning
EmergencyconstNT EM08 (8W) · EM15 (15W) · EM15-CL (15W + constNTLink) · UL 924 · NFPA 101 90-min egress
Mounting
StandardSurface-mount · ceiling or wall · key-hole slots + captive mounting screws · tool-light install
StairwellVertical wall mount · stairwell-grade impact resistance · DLC Stairwell rebate eligible
WraparoundCeiling-mount linear ambient · even wraparound distribution · DLC Linear Ambient rebate eligible
WeightLWRL2: ~2.5 lb · LWRL4: ~4.8 lb (luminaire only)
Depth2.50″ surface profile
Compliance & Certifications
StandardsETL Listed (Intertek US/CA) · DLC Dual-Listed (Stairwell + Linear Ambient) · FCC Title 47 Part 15B · RoHS · UL Damp Location (DampGuard™)
Country of OriginVerification pending supplier confirmation · heads up: non-TAA
Warranty7-Year / 75,000-Hour Limited Liability · PRO tier
archipelagolighting.com · LWRL Waymark submittal · Specifications subject to change
Rev. 2026-05 · Page 2 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LWRL4-3550CS

Dimensions & Mounting

2 SKU classes · LWRL2 (2 FT) / LWRL4 (4 FT) · surface-mount
LWRL2 · 2 FT
wayMARK LWRL2 2FT linear wall/ceiling dimension drawing
LWRL4 · 4 FT ★
wayMARK LWRL4 4FT linear wall/ceiling dimension drawing
SKU ClassLength (in)Width (in)Depth (in)Weight (lb)Wattage Range
LWRL2-2035CS · 2 FT21.54″4.72″2.50″~2.5 lb20/25/30/35W
LWRL4-3550CS · 4 FT ★45.55″4.72″2.50″~4.8 lb35/40/45/50W
Mount Compatibility
Surface (ceiling or wall)Native · key-hole slots + captive mounting screws · standard 4" or 8" outlet box compatible · no accessory required
Stairwell Vertical WallDLC Stairwell category · impact-resistant cold-rolled steel housing for high-traffic envelopes · switch-back stair runs and parking-deck rooflines
Linear Ambient CeilingDLC Linear Ambient category · even 113° wraparound distribution · corridors, back-of-house, parking-garage drives
SuspensionAircraft cable suspension via standard 1/4-20 thread inserts (not supplied) · field-cut to height for open-ceiling installs
Form Factor & Construction
Depth (both classes)2.50″ surface profile · clears standard stairwell + parking-garage envelopes
LED EngineSingle-array linear engine sized per class (LWRL2 short / LWRL4 long) · consistent 113° beam across both classes
Driver CompartmentSealed driver chamber · field-accessible DIP-switch bank for 4-WATTselect + 4-CCTselect at install · no tool-changeout needed
Wiring AccessStandard 1/2″ conduit knockouts on top + back-plate · supports through-wiring for daisy-chain runs
archipelagolighting.com · LWRL Waymark submittal · Specifications subject to change
Rev. 2026-05 · Page 3 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LWRL4-3550CS

Ordering Information

Configure your catalog number
Family
LWRL
Size
4
WATT Bundle
3550CS
/W##
/C##
SegmentAvailable Codes
LWRLWaymark family · planoRCH PRO Linear Stairwell / Wraparound
2 / 4Size class — LWRL2 (2 FT · 21.54″) · LWRL4 (4 FT · 45.55″) ★
2035CS / 3550CS4-WATTselect bundle — auto-coupled to size · LWRL2 = 2035CS (20/25/30/35W) · LWRL4 = 3550CS (35/40/45/50W) · CS = 4-CCTselect (3000/3500/4000/5000K)
/W20 to /W50Optional factory-lock watt — collapses 4-WATTselect to a single fixed value (e.g. /W35 = 35W locked) · Workbench assembly · 1-3 wk lead
/C30 to /C50Optional factory-lock CCT — collapses 4-CCTselect to a single fixed value (e.g. /C40 = 4000K locked) · Workbench assembly · 1-3 wk lead
AccessoryOrder Code · line-item add to fixture SKU
constNT EMEM08 (8W) · EM15 (15W) · EM15-CL (15W + constNTLink) — UL 924, field-install
Bi-Level SensorMSM-HTI/08P1/BLS (Microwave) · MSP-HTI/08P1/BLS (PIR) — 13FT max mount · commissioned via RM-HT/06S IR Remote
CS Sensor / ControllerMSP-SRI/903P1/ACS (8FT PIR) · MSP-SRI/20CM/HD/ACS (20FT ceiling) · MSP-SRI/40CM/HD/ACS (40FT ceiling) · MSX-CTI/903P1/ACS (fixture controller) · MSX-CTI/LV20/ACS (J-Box controller) · MSZ-KPI/50WM/ACS (kinetic switch)
SILVAIR NLCMSM-HTI/08P1/NLC · MSM-SRI/903P1/NLC · MSP-HTI/08P1/NLC · MSP-SRI/903P1/NLC · MSX-CTI/LV5/NLC — enterprise Bluetooth Mesh
Ordering example: LWRL4-3550CS/W50/C50 = 4 FT wraparound · 35-50W bundle · 4-CCTselect · factory-locked 50W · factory-locked 5000K

Base catalog example (field-selectable): LWRL4-3550CS = 4 FT wraparound · 35-50W bundle · 4-CCTselect · contractor sets W + CCT at install via dip-switch

Photometric Data

LWRL4 · 50W · 5000K · LM-79 measured
LWRL Waymark measured polar photometric distribution · 113-degree wide-beam Lambertian wraparound
Peak Candela~2,150 cd
Total Lumen Output6,750 lm
Beam Angle113° wide-beam Lambertian
DistributionWraparound ambient · zero upward emission
Measured Efficacy~135 LM/W at full output
Datasheet Headline125-135 LM/W across the dial
Test StandardIESNA LM-79 · supplier lab certified
IES FileLWRL4-3550CS-50W-5000K.IES
Complete IES bundle (32 files · 4-WATT × 4-CCT × 2 SKU classes) available at the LWRL Waymark Documentation section of the product page.
ETL Listed DLC Dual-Listed Stairwell Linear Ambient FCC 47 / 15B RoHS UL Damp Location IP20 Indoor 7-yr / 75K-hr
archipelagolighting.com · LWRL Waymark submittal · Specifications subject to change
Rev. 2026-05 · Page 4 of 4