Door-kit retrofit panel for legacy GT8 / 2GT8 lensed troffer apertures · SPCC white steel door + frame · PMMA white prismatic diffuser · aluminum white bezel · same-aperture drop-in (no ceiling demolition)
Install Time
10-15 min per fixture · existing troffer housing stays in place · door swings open · door-kit drops in · door swings closed · existing line-voltage J-Box reused
Diffuser
PMMA white prismatic · uniform 120° Lambertian distribution · shadow-free output across the full retrofit face
Surge Protection
1 kV built-in surgeⒶRMOR · standard, not a price-up adder · IEC/EN 61000-4-5 compliant
Ingress
IP40 indoor · UL Damp Location (DampⒶUARD)
Operating Temp
-20°C to 40°C (-4°F to 104°F) ambient · thermalⒶRMOR cold-start · cold-warehouse / parking-garage / mezzanine retrofit capable
LED & Optics
LED Source
High-density SMD LEDs · LM-80 verified · back-lit (not edge-lit) for uniform face brightness without halo edges
CCT Options
3-CCTselect dip · 3500K / 4000K / 5000K
CRI
> 80 standard at every CCT
Distribution
120° uniform Lambertian troffer · zero upward emission · 100% downward per zonal LM-79 data
Lumen Maintenance
L70 @ 50,000 hrs (LM-80 verified) · LED color shift warrantied <180K over the warranty period
Legacy GT8 / 2GT8 lensed troffer staying in place · existing housing retained · same-aperture drop-in (no ceiling demolition · no T-bar grid modification)
Install Time
10-15 minutes per fixture · open existing door · disconnect fluorescent ballast · land 120-277V to driver · door-kit drops in · close door
Wiring
Hardwire to existing line voltage in the J-Box · 120-277V universal · Class I wiring for dimming run (separate from line-voltage run per code)
Sensor Mount
Bi-Level / ⒶCS / SILVAIR sensor accessory mount via /SR option · snap-in · field-installable or factory-installed at order
New-Construction Path
For new construction (no fluorescent housing to retain), spec proⒶRCH-T (LPVT) whole-fixture troffer instead · retroⒶRCH-T1 is the door-kit retrofit answer specifically
archipelagolighting.com · LPVR retroⒶRCH-T1 submittal · Specifications subject to change without notice
Series segment — LBLR-I tier · Made in Mexico · TAA Compliant · always present on every catalog number
/SR
Optional Sensor Ready port — snap-in for the contrⒶLS + constⒶNT ecosystem · specify at order if installing fixture-mount sensors
/W18 to /W44
Optional factory-lock watt — collapses 3-WATTselect to a single fixed value (e.g. /W44 = 44W locked) · Workbench assembly · 1-3 wk · valid range bounded by SKU class
/C35 to /C50
Optional factory-lock CCT — collapses 3-CCTselect to a single fixed value (e.g. /C50 = 5000K locked) · Workbench assembly · 1-3 wk · 3500K / 4000K / 5000K only
Accessory
Order Code
EM Battery
EM08 (8W) · EM15 (15W) · EM15-CL (15W + constⒶNTLink) — order as separate line item · UL 924 · NFPA 101 90-min egress
Bi-Level Sensor
MSP-BLS (PIR) · MSM-BLS (Microwave) · 13′ max mount · RM-HT/06S IR Remote commissioning
