Day-Brite CFI DSRT Selectable Troffer

Selectable lumens & CCT

The Day-Brite/CFI DSRT Selectable Troffer is a robust low glare luminaire designed to provide three lumen and three CCT field selectable options per size. It is available for use in recessed, suspended, and surface mount applications, making it ideal for general lighting applications such as open office, schools, healthcare, and retail.

Key Features

Overall 2.76in deep luminaire, including driver box.
Even distribution of light on the lens provides very low glare.
General light distribution creates uniform horizontal and vertical illuminance.
CRI 80 minimum color rendering with balanced spectrum.
Accessory field install kits available for surface mounting.
Polystyrene diffuser provides visual comfort and high efficiency.
Lens is easy to detach for cleaning.
Opal lens provides a uniform aesthetic on the ceiling plane.
Tight enclosure assembly impedes ingress of dust and insects.
Driver featuring high power factor (>0.90), 120-277V 60/50Hz, and less than 25% THD.
Operating temperature -10°C~40°C.
50,000 hours @ L70B50.
Up to 125 lm/W efficacy.
Field Selectable CCT and Wattage: CCT can be selected between 5000K (CW), 4000K (NW), and 3500K (WW). Wattage selection allows for easy field selection between three lumen packages.
CETLus listed to ETL and CSA standards, suitable for damp locations.
IC rated.
Standard configurations are 0-10V dimming to 1%.
DSRT Selectable Troffer luminaires are Designlights Consortium® Premium qualified.

Sensor Features

Sensor/0-10V Dim: Enable or Disable Sensor (Default: Enabled).
CCT Selector: Choose between 3500K, 4000K, or 5000K (Default: 4000K).
Power Selector: Choose between Low, Mid, or High (Default: High).

DAYOCC sensor options are available with 3 control settings (Occupancy, Daylighting & Dimming). The sensor provides five coverage patterns to ensure accuracy.

Sensor Control Settings

Occupied Timeout: Switches 1, 2, & 3. Default = 10 seconds.
Stand-by dimming level: Switch 4. Default = 20% dimming.
Stand-by timing level: Switches 5 & 6. Default = 1 minute.

Construction/Finish

Strong and well-constructed 3in deep 5VA housing.
Die-formed driver box with standard access plate for ease of wiring.
Integral clips accommodate definitive attachment to T-bar grid for recessed applications.

General Notes

All accessories are field installed.
All options are factory installed.
Consult factory for compatibility with airborne contaminants.
Five-year limited luminaire warranty includes LED boards and driver.

Ordering Guide

Catalog Code	Size	Voltage	Power / Wattage (W)			Lumens¹			Efficacy (lm/W)
			3500K	4000K	5000K	3500K	4000K	5000K	3500K	4000K	5000K
1DSRT3050LCS-4-UNV-DIM	1x4	UNV	39	39	39	5000	5150	5000	128	132	128
1DSRT3050LCS-4-UNV-DIM	1x4	UNV	31	31	31	4000	4100	4000	129	132	129
1DSRT3050LCS-4-UNV-DIM	1x4	UNV	23	23	23	2850	2900	2900	124	126	126
2DSRT3050LCS-2-UNV-DIM	2x2	UNV	35	35	35	4350	4500	4400	124	129	126
2DSRT3050LCS-2-UNV-DIM	2x2	UNV	28	28	28	3650	3800	3700	130	136	132
2DSRT3050LCS-2-UNV-DIM	2x2	UNV	22	22	22	2750	2750	2800	125	125	127
2DSRT4060LCS-4-UNV-DIM	2x4	UNV	46	46	46	6000	6150	6100	130	134	133
2DSRT4060LCS-4-UNV-DIM	2x4	UNV	39	39	39	5000	5150	5000	128	132	128
2DSRT4060LCS-4-UNV-DIM	2x4	UNV	30	30	30	4000	4100	4000	133	137	133
1DSRT3050LCS-4-UNV-DIM-DAYOCC	1x4	UNV	39	39	39	5000	5150	5000	128	132	128
1DSRT3050LCS-4-UNV-DIM-DAYOCC	1x4	UNV	31	31	31	4000	4100	4000	129	132	129
1DSRT3050LCS-4-UNV-DIM-DAYOCC	1x4	UNV	23	23	23	2850	2900	2900	124	126	126
2DSRT3050LCS-2-UNV-DIM-DAYOCC	2x2	UNV	35	35	35	4350	4500	4400	124	129	126
2DSRT3050LCS-2-UNV-DIM-DAYOCC	2x2	UNV	28	28	28	3650	3800	3700	130	136	132
2DSRT3050LCS-2-UNV-DIM-DAYOCC	2x2	UNV	22	22	22	2750	2750	2800	125	125	127
2DSRT4060LCS-4-UNV-DIM-DAYOCC	2x4	UNV	46	46	46	6000	6150	6100	130	134	133
2DSRT4060LCS-4-UNV-DIM-DAYOCC	2x4	UNV	39	39	39	5000	5150	5000	128	132	128
2DSRT4060LCS-4-UNV-DIM-DAYOCC	2x4	UNV	30	30	30	4000	4100	4000	133	137	133

¹ Nominal delivered lumens at 25°C ambient.

Accessories (order separately)

DBELIS10WKit: 10W Selectable Nano Inverter EM Kit (field installed option not for 277V applications).
DSRT-CKT-NP: Selectable Troffer Suspension Kit with no Power.
DSRT-CKT-WP: Selectable Troffer Suspension Kit with Power.
1DSRT-4-SKT: 1x4' Selectable Troffer Surface Kit.
2DSRT-2-SKT: 2x2' Selectable Troffer Surface Kit.
2DSRT-4-SKT: 2x4' Selectable Troffer Surface Kit.
FMA14: 1'x4' "F" mounting frame for NEMA "F" mounting.
FMA22: 2'x2' "F" mounting frame for NEMA "F" mounting.
FMA24: 2'x4' "F" mounting frame for NEMA "F" mounting.

Photometry Data

The document includes detailed photometry data, including Candela Distribution, Flux, Zonal Lumen Summary, Average Luminance, and Coefficients of Utilization for various configurations such as 1DSRT3050LCS-4-UNV-DIM H and 2DSRT3050LCS-2-UNV-DIM H.

Dimensional Drawings

The document provides dimensional drawings for standard configurations of the 2x2, 1x4, and 2x4 troffers, indicating overall dimensions and the location of the end cap with sensor.

	Day-Brite CFI FluxStream Family Lighting Solutions Comprehensive catalog of Day-Brite CFI FluxStream Family LED lighting, including various strip and sealed strip models with detailed specifications on length, lumens, CRI, color temperature, voltage, and dimming options.
	Day-Brite CFI DSRT Selectable LED Troffer Installation Guide Comprehensive installation guide for the Day-Brite CFI DSRT Selectable LED Troffer. Covers safety precautions, CCT, lumen, and sensor selection, T-grid mounting, wiring, 0-10V dimming, sensor settings, and FCC compliance.
	Day-Brite CFI SDS Selectable LED Linear Strip - Product Specifications Detailed specifications for the Day-Brite CFI SDS selectable LED linear strip, featuring adjustable lumens and CCT, various lengths, dimming, and occupancy sensing for commercial and residential applications.
	Day-Brite CFI DuaLED Recessed LED 2x2 Installation Guide Comprehensive installation instructions for the Day-Brite CFI DuaLED Recessed LED 2x2 lighting fixture, covering safety precautions, wiring, and assembly steps.
	FluxStream EZ LED Installation Instructions Comprehensive installation instructions for the FluxStream EZ LED luminaire, covering single unit and continuous row mounting, maintenance, and safety precautions.
	Day-Brite CFI FBZ Highbay Installation Guide Installation instructions for the Day-Brite CFI FBZ Highbay LED lighting fixture, covering two or four LED pod configurations. Includes steps for mounting, wiring, and accessing the LED driver compartment.
	Day-Brite CFI Motion Sensor Remote Control User Guide User guide for the Day-Brite CFI Motion Sensor Remote Control (HCY-REMOTE), detailing its features, operation, and configuration for LED High Bay lights.
	Day-Brite CFI INTELLISENSOR Smart Control Microwave Motion Sensor (HCY-SENSOR) Installation and Specifications Detailed information on the Day-Brite CFI INTELLISENSOR Smart Control Microwave Motion Sensor (HCY-SENSOR), including specifications, installation instructions, and operational features for lighting control.