Fire Tests of Building Construction and Materials — 2-hour rating when installed per fire-rated ceiling assembly instructions · housing engineered to maintain assembly integrity through the rated burn period without compromising the ceiling membrane
ASTM E119
Standard Test Methods for Fire Tests of Building Construction and Materials · pairs with UL 263 to certify the 2-hour rating · authority-having-jurisdiction (AHJ) submittal acceptance across IBC § 711, NFPA 5000, and most state codes
ASTM E283
Standard Test Method for Determining Rate of Air Leakage — SafeZone housing is airtight listed · qualifies for ASHRAE 90.1 envelope leakage compliance and CA Title-24 air-leakage credit
Application
Approved for multi-family corridors, exit-path ceilings, stairwell soffits, unit-to-unit fire-rated assemblies, and any spec requiring 2-hour fire-resistant ceiling penetrations. No fire-box accessory required — the SafeZone disk + J-Box themselves carry the UL 263 / ASTM E119 listing.
Construction
Housing
Aluminum heat-sink with fire-resistant construction · ultra-slim wafer profile (11/16″ depth across all 4 sizes) · spring-loaded retention clips · plenum-rated quick-connect cable from disk to remote J-Box
Lens / Diffuser
Frosted polycarbonate lens · edge-lit distribution: light disperses uniformly across the diffuser face with no glare or dark spots · 110° even beam angle
Finish
White (standard) — only finish offered on Radius SafeZone (no Matte Black / Copper trim accessories on the SafeZone SKU line · those are Radius-II-only)
Trim Style
Flat (/F) — standard low-profile aesthetic · Baffle is NOT offered on Radius SafeZone per datasheet. If a baffle trim is required for a glare-control application, spec the standard Radius-II (non-fire-rated) instead.
Ingress / Location
Wet-location listed across all 4 sizes × Flat trim = 4 base SKUs · IC Rated for direct insulation contact · suitable for indoor and outdoor in dry, damp, and wet locations · NEC-compliant closet installs
Field-selectable via dip switch on the Plug-n-Play J-Box (not the disk — install-ergonomics differentiator): 2700K / 3000K / 3500K / 4000K / 5000K — no SKU change required, single fixture covers any spec
120V AC · 60 Hz (single voltage — not 120-277V universal)
Driver
Constant-current driver in remote Plug-n-Play J-Box · electronically isolated · plenum-rated quick-connect cable from disk to J-Box · J-Box sized for AWG12-AWG20 supply cable with strain-relief design
Power Factor
> 0.9 Non-Flicker
THD
< 20%
Dimming
ELV + TRIAC · 10% to 100% · approved 12-SKU dimmer list (6 Leviton + 6 Lutron — see Page 4 dimmer matrix)
Mounting
Standard Install
Direct-cutout install — no separate housing required. Cutout per size: Ø 3-9/16″ (LDRS3) · Ø 4-3/4″ (LDRS4) · Ø 6-13/16″ (LDRS6) · Ø 8-7/8″ (LDRS8). Wafer drops into cutout, spring clips lock from above.
Plug-n-Play J-Box
Remote driver J-Box mounts above the ceiling in the cavity, plenum-rated quick-connect cable to the wafer. Color-select dip switch on J-Box face. Mount J-Box to joist or T-grid drop.
New Construction · Retrofit
Suitable for new construction OR retrofit applications. For drop-ceiling commercial install, pair with the T-Grid Installation Kit (4″ + 6″ only — LDRS-4R1/TGK · LDRS-6R1/TGK).
Fire-Rated Assembly
Install per fire-rated ceiling assembly instructions. The UL 263 / ASTM E119 2-hour rating applies only when the SafeZone is installed in a properly constructed fire-rated assembly. The disk + J-Box carry the listing; the assembly must satisfy ceiling-membrane and joist-spacing details on file.
Compliance & Certifications
Fire / Safety
UL 263 · ASTM E119 · ASTM E283 — the 3-listing fire+air-leak stack that wins permit acceptance in multi-family corridor + stairwell specs
Standards
ETL listed (US + Canada · UL 1598) · ENERGY STAR certified · CA Title-24 Part 6 + JA8 compliant · NEC compliant · IC Rated · Wet Location listed · RoHS
Rebate-Ready
ENERGY STAR + JA8 paths qualify for residential + light-commercial utility-rebate programs at PG&E, SCE, SDG&E, and most state IOUs · PRO+ tier · search "LDRS" at archipelagolighting.com/support/rebate-center/
Warranty
10-year limited / 100,000-hour L70 rated life — heads up: this is shorter than the typical 10-yr PRO+ warranty across the rest of the planoⒶRCH lineup · luminaire · light output · driver performance · fixture finish
archipelagolighting.com · LDRS Radius SafeZone submittal · UL 263 + ASTM E119 2-Hour Fire-Rated · ETL + ENERGY STAR + Title-24/JA8 + Wet Location · Specifications subject to change
11/16″ (ultra-slim wafer · uniform across all 4 SafeZone sizes)
Recess
Wafer recesses into ceiling cutout · 0″ projection below ceiling line
J-Box
Plug-n-Play J-Box mounts remote (above ceiling) · plenum-rated quick-connect cable to wafer · NO separate housing required at the wafer cutout
In-the-Box Components
Disk + J-Box
Slim wafer disk + remote Plug-n-Play J-Box · plenum-rated quick-connect cable pre-installed between them
Retention
Spring-loaded retention clips · pre-installed on the wafer
Single Unit Pkg
Single-fixture retail box (no /6PK suffix on catalog number)
6-Pack Carton
6-pack contractor carton available (catalog suffix /6PK · per current pack)
Mount Path
Standard Install
Direct cutout · spring clips lock from above · pop-in install · no separate housing required
Drop-Ceiling (Opt)
T-Grid Installation Kit (LDRS-4R1/TGK 4″ · LDRS-6R1/TGK 6″ · QuickShip · 4″ + 6″ only — no 3″ or 8″ T-grid kits in production) — lay-in to 2×2 or 2×4 ceiling tile without cutting
Fire-Rated Assembly
Install per UL 263 / ASTM E119 fire-rated ceiling assembly instructions — ceiling membrane and joist details on file at archipelagolighting.com
archipelagolighting.com · LDRS Radius SafeZone submittal · UL 263 + ASTM E119 2-Hour Fire-Rated · ETL + ENERGY STAR + Title-24/JA8 + Wet Location · Specifications subject to change
Rev. 2026-05 · Page 3 of 4
ARCHIPELAGO
Lighting Group
Catalog Number
LDRS411-RSZ5/F
Ordering Information
Configure your catalog number
Family
LDRS
Size + Wattage
411
Gen · CCT
-RSZ5
Trim
/F
Pack
single
Segment
Available Codes
LDRS
Multi-fⒶMILY LED Slim Wafer family prefix
306 / 411 / 615 / 819
Size & wattage — 3″/6.5W (rounded "06" in SKU) · 4″/11W · 6″/15W · 8″/19W (4 sizes in the SafeZone active SKU set — wattage is baked into the size code, no separate WATTSELECT)
-RSZ5
Family designator — Radius SafeZone + 5-CCTselect · fixed across all SKUs · CCT set on the Plug-n-Play J-Box dip switch
/F
Flat trim — only trim offered on Radius SafeZone (Baffle is NOT available — for a baffle trim spec the standard Radius-II instead)
/6PK
Optional 6-Pack contractor carton suffix · omit for single-unit retail box · used on volume-quote line items
Append /6PK to any base SKU above for the 6-pack contractor carton line item · e.g. LDRS411-RSZ5/F/6PK
Photometric Data
110° even distribution · LDRS411 · 11W · 4000K · Radius SafeZone · white · wet location · UL 263 fire-rated
Peak Intensity (est.)
305 cd
Total Lumen Output
957 lm
Beam Angle
110° (even distribution)
Optic
Edge-lit frosted polycarbonate
Source
High-flux mid-power LED engine
CRI
≥ 90 TruColor (per datasheet)
L70 Lumen Maint.
50,000 hr
IES File
LDRS411-RSZ5_4000K.IES
IES Bundle
URL pending · IES files in lab
Photometric note: 4″ and 6″ cells above are based on real LM-79 IES data tested by
EVERFINE on a GO-2000B goniophotometer (shared edge-lit optical engine with Radius-II — same beam
profile across the family). 3″ and 8″ photometrics not yet published — flagged for
engineering follow-up. ENERGY STAR certification URL also pending.
UL 263 · 2-HR FIREASTM E119ASTM E283 AIR-LEAKJA8 / Title-24ENERGY STARWet LocationIC RatedETL · UL 1598NECRoHSCA Title-24 Part 610-Yr Warranty50,000 hr L70PF > 0.9
archipelagolighting.com · LDRS Radius SafeZone submittal · UL 263 + ASTM E119 2-Hour Fire-Rated · ETL + ENERGY STAR + Title-24/JA8 + Wet Location · Specifications subject to change
