PRT55R/LC/E
Field Adjustable Logo
PRT55R/LC/E large main
55W 3500/4000/5000K
  • IP65 rated
  • 100,000-Hour LED lifespan
  • 5-Year Limited Warranty
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Performance
Watts 55/42/30W
Color Temp 3500/4000/5000K
Lumens 4,340-7,651 lm
Efficacy 136.9-150.4 lm/W
Color Accuracy 79-81 CRI
L70 Lifespan 100,000 Hours
Type Constant Current
120V 0.50A/0.35A/0.25A
208V 0.29A/0.21A/0.15A
240V 0.25A/0.18A/0.13A
277V 0.22A/0.15A/0.11A
Input Watts 29.7-53.4W
Dimensions
Link to Dimension Drawing
Technical Specifications
Field Adjustability
Field Adjustable
Field Adjustable Light Output:
55W/42W/30W (factory default 55W)
Color Temperature Selectable:
3500K, 4000K and 5000K (factory default 4000K)
On/Off Photocell (factory default "Off")
Lightcloud
Lightcloud Controller Installed
Fixture, Zone, and plug-load control from one powerful device. Capable of switching, 0-10V dimming, power monitoring. Can also be used to extend the range of the Lightcloud mesh network. Attach to fixture, junction box, or electrical panel. Learn more at www.lightcloud.com
Compliance
UL Listed
Suitable for wet locations
IP Rating
Ingress protection rating of IP65 for dust and water
IESNA LM-79 & LM-80 Testing
RAB LED luminaires and LED components have been tested by an independent laboratory in accordance with IESNA LM-79 and LM-80.
DLC Listed
This product is listed by Design Lights Consortium (DLC) as an ultra-efficient premium product that qualifies for the highest tier of rebates from DLC Member Utilities. Designed to meet DLC 5.1 requirements.
DLC Product Code: S-W1H0RF
Performance
Lifespan
100,000-Hour LED lifespan based on IES LM-80 results and TM-21 calculations
Driver
55W: Constant Current, Class 1, 50/60 Hz, 120V-277V, 120V: 0.50A, 208V: 0.29A; 240V: 0.25A, 277V: 0.22A
42W: Constant Current, Class 1, 50/60 Hz, 120V-277V, 120V: 0.35A, 208V: 0.21A; 240V: 0.18A, 277V: 0.15A
30W: Constant Current, Class 1, 50/60 Hz, 120V-277V, 120V: 0.25A, 208V: 0.15A; 240V: 0.13A, 277V: 0.11A
LED Characteristics
LEDs
Long-life, high-efficacy, surface-mount LEDs
Color Consistency
7-step MacAdam Ellipse binning to achieve consistent fixture-to-fixture color
Color Uniformity
RAB's range of Correlated Color Temperature follows the guidelines of the American National Standard for Specifications for the Chromaticity of Solid State Lighting (SSL) Products, ANSI C78.377-2017.
Electrical
Dimming Driver
Driver includes dimming control wiring for 0-10V dimming systems. Requires separate 0-10V DC dimming circuit. Dims down to 10%.
THD
55W: 5.38% at 120V, 11.56% at 277V
42W: 7.09% at 120V, 13.57% at 277V
30W: 10.03% at 120V, 14.01% at 277V
Power Factor
55W: 99.6% at 120V, 93.6% at 277V
42W: 99.3% at 120V, 90% at 277V
30W: 98.8% at 120V, 83.8% at 277V
Battery Backup
Battery backup will operate the fixture for 90 minutes if power fails. Wired for 120-277V.
Battery Backup Light Loss Factor
55W: 15%
42W: 20%
30W: 27%
Surge Protection
Ringwave LN4kV/LN-GND 6kV
Aux Power Supply
Yes
Dim to Off
Yes
Photocell
Integrated photocell included with on/off switch (factory default: off)
Construction
Maximum Ambient Temperature
Suitable for use in up to 40°C (104°F)
Gaskets
High-temperature silicone
Housing
Die-cast aluminum
Lens
Polycarbonate lens
Reflector
Polycarbonate
Green Technology
Mercury and UV free. RoHS-compliant components.
Finish
Formulated for high durability and long-lasting color
Installation
Mounting
Surface and pendant mounting
Optical
BUG Rating
55W: B3 U5 G4
42W: B2 U5 G4
30W: B2 U4 G3
Other
5 Yr Limited Warranty
The RAB 5-year, limited warranty covers light output, driver performance and paint finish. RAB's warranty is subject to all terms and conditions found at rablighting.com/warranty.

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