Configured SKU
LDRR410-S5-N2/B/W
Generated
ARCHIPELAGO
Lighting Group
Catalog Number
LDRR410-S5-N2/B/W
Project
Type
Catalog #
Prepared By
Notes
Date

Nebula-II Series · 4″ Retrofit Downlight

Multi-fⒶMILY ECO-tier E26 retrofit · 5-CCTselect 2700/3000/3500/4000/5000K · 100° wide-flood · JA8 / Title-24 / ENERGY STAR / cETLus / Damp-rated · TRIAC dim 5-100%
LDRR Nebula-II downlight — front 3/4 angle, white finish, baffled trim
Lumens (4000K)
856lm
Wattage
10W
Efficacy
85.6lm/W
CCT (selectable)
2700-5000K
CRI / R9
≥ 90 / ≥ 50
Beam · Voltage
100° · 120V
Field-Selectable
5-CCTselect back-of-fixture switch · 2700/3000/3500/4000/5000K · quickⒶDAPT E26 screw-base retrofit, snap-on retention · truⒶCOLOR CRI ≥ 90, R9 ≥ 50 (JA8-2022 high-efficacy)
Approved by
Date
archipelagolighting.com · LDRR Nebula-II submittal · Specifications subject to change
Rev. 2026-05 · Page 1 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LDRR410-S5-N2/B/W

Specifications

LDRR Nebula-II · 4″ / 6″ E26 Retrofit Downlight
Construction
HousingDie-cast aluminum heat-sink with white-painted polycarbonate trim cup · snap-on retention via 4 stainless tension clips
LensFrosted polycarbonate diffuser · 100° wide-flood distribution · UV-stabilized
TrimSelf-edge polycarbonate · Baffled (B) for glare control or Smooth (S) · field-swappable in < 30 s tool-less
FinishWhite (W, default) · Black (BK) · Bronze (BZ) — powder-coat over PC, color-matched to LDRR{4|6}-SE/{BK|BZ|W} replacement trim ladder
Ingress / LocationDamp-location rated (covered ceiling) · IC-compatible when paired with CRC{4|6}-SB/T24 housing
Operating Temp−4°F to +113°F (−20°C to +45°C) ambient · 95% RH non-condensing
LED & Optics
LED SourceHigh-flux mid-power packaged LEDs · 50,000-hr L70 lumen maintenance
CCT (5-CCTselect)Field-selectable via back-of-fixture switch: 2700K / 3000K / 3500K / 4000K / 5000K — no SKU change required
CRI / R9≥ 90 CRI · ≥ 50 R9 · meets CA Title-24 JA8-2022 high-efficacy threshold
SDCM≤ 3-step MacAdam color stability across all CCT settings
Beam Distribution100° wide-flood — single beam, no field-replaceable optic
Lumen Output (4000K)LDRR410: 856 lm @ 10 W (85.6 lm/W) · LDRR615: 1,150 lm @ 15 W (76.7 lm/W) — see Page 4 for full CCT table
Driver & Electrical
Voltage120V AC · 50/60 Hz
DriverDOB (Driver-on-Board) · integral · sealed
Power Factor≥ 0.90 at full load (JA8 minimum)
THD≤ 20% at full load
DimmingTRIAC (forward-phase) dim 5–100% · compatible with most residential leading-edge dimmers (Lutron Diva/Maestro tested)
Inrush< 30 A @ 120V — supports 20+ fixtures per 15A circuit
Controls & Sensors (optional)
ⒶCS by ALG AppBLE 5.0 mesh — scenes, schedules, group dimming via mobile app (paired with SD/ⒶCS or HD/ⒶCS sensor accessory)
Sensor Add-OnMSP-SRI/20CM/HD/ⒶCS — 20FT ceiling-mount BLE SigMesh PIR · in-unit + small commercial · or MSP-SRI/40CM/HD/ⒶCS — 40FT high-bay BLE SigMesh PIR · corridors + common areas (DLC NLC qualified)
EmergencyCRCU-EM24/JBM — 24W J-box quick-install emergency LED driver · UL 924 · 90-min runtime · LiFePO4 self-protecting battery · CEC Title-24 §1006/§1007 egress compliant
Mounting
StandardE26 screw-base retrofit — installs into existing residential housings (J-box or pre-wired CRC)
New ConstructionPair with Gehry CRC: CRC4-SB/E26 (4″ standard) · CRC4-SB/T24 (4″ IC/AT) · CRC6-SB/E26 (6″ standard) · CRC6-SB/T24 (6″ IC/AT)
Cut-OutLDRR410: 4-1/8″ Ø · LDRR615: 6-1/4″ Ø · adjustable spring clips accommodate ½″–1″ ceiling thickness
Compliance & Certifications
StandardscETLus listed (UL 1598) · ENERGY STAR · JA8-2022 high-efficacy · CEC Title-20 (MAEDbS) · CEC Title-24 Part 6 compliant · Damp-location rated · RoHS · FCC Title 47 Part 15B
Rebate-ReadyQualifies for utility rebates under CalEnergyWise, ComEd, NYSERDA, and most national QPLs (verify current QPL listing at archipelagolighting.com/qpl)
Warranty5-year limited (luminaire) · 1-year limited (controls accessories)
archipelagolighting.com · LDRR Nebula-II submittal · Specifications subject to change
Rev. 2026-05 · Page 2 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LDRR410-S5-N2/B/W

Dimensions & Mounting

Top + Side views · Cut-out specs · CRC pairing
Top + Side views (in)
TOP Ø 4.50″ aperture 4.13″ SIDE depth 2.40″ recess 2.20″
Dimensions (in)
Outer Diameter4.50″ (LDRR410)
Aperture4.13″ (LDRR410)
Cut-Out4-1/8″ Ø (LDRR410)
Recess Depth2.20″
Total Depth2.40″ (with trim)
Ceiling Range½″ – 1″ thickness · adjustable spring clips
Weight + Carton
Single Unit0.6 lbs (LDRR410) · 0.9 lbs (LDRR615)
12-Pack Carton8.5 lbs (LDRR410 / 12) · 12.0 lbs (LDRR615 / 12)
Mount Path
RetrofitE26 screw-base direct into existing housing
New (Std)CRC4-SB/E26 (4″ standard build)
New (T24)CRC4-SB/T24 (4″ IC/AT for CA Title-24)
archipelagolighting.com · LDRR Nebula-II submittal · Specifications subject to change
Rev. 2026-05 · Page 3 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LDRR410-S5-N2/B/W

Ordering Information

Configure your catalog number
Family
LDRR
Aperture
410
CCT
S5
Gen
N2
Trim
B
Finish
W
Segment Available Codes
LDRRMulti-fⒶMILY downlight family prefix
410 / 615Aperture & wattage — 410 (4″ · 10 W) · 615 (6″ · 15 W)
S55-CCTselect — fixed family designator (CCT switched at install on the back of the fixture)
N2Nebula-II generation — fixed family designator
B / STrim style — Baffled (default) · Smooth
W / BK / BZFinish — White (default ★) · Black · Bronze
/12PKPack — append /12PK for 12-pack carton (omit for single unit)

Photometric Data

100° wide-flood · LDRR410 · 4000K
nebula-ii photometric distribution — LM-79 tested
Peak Intensity (0°)382 cd
Total Lumen Output856 lm
Efficacy85.6 lm/W
Beam Angle (50% peak)100°
Field Angle (10% peak)120°
Spacing Criterion1.20
Test StandardIESNA LM-79-19
L70 Lumen Maint.50,000 hr
IES FileLDRR410-N2-4000K.IES
JA8-2022 Title-24 Title-20 cETLus UL 1598 ENERGY STAR Damp RoHS FCC 47 / 15B
archipelagolighting.com · LDRR Nebula-II submittal · Specifications subject to change
Rev. 2026-05 · Page 4 of 4