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Description

RAB R4STLB 4 in. Trimless Downlight — 20W / Selectable CCT

The RAB R4STLB is a 4-inch trimless square downlight delivering up to 1,900 lumens using 20W. This fixture offers a selectable CCT from 2700K to 5000K, making it versatile for various lighting needs. Its trimless design provides a sleek, modern aesthetic suitable for high-end applications.

Key Features

  • Wattage: 20W
  • Lumens: 1,638lm to 1,876lm depending on CCT
  • Voltage: 120V
  • Dimmable: Yes, down to 10% with TRIAC/ELV systems
  • Beam Angle: 38°
  • CRI: 90
  • Lifespan: 50,000 hours
  • IC Rated: Suitable for direct contact with insulation
  • Energy Star Approved: Certified for energy efficiency
  • Title 24 Compliant: Meets California Title 24 requirements
  • RoHS Compliant: Mercury and UV free

Construction & Aesthetics

Constructed with a die-formed metal enclosure and a clear polycarbonate lens, the R4STLB features a smooth trimless design in a black finish. It is suitable for both indoor and outdoor wet locations.

Electrical & Installation

Operating at 120V with a constant current driver, this downlight is dimmable and includes a remote driver and junction box for easy installation. It does not require a recessed housing or J-box.

Light Output & Performance

With a high efficacy of up to 98 lm/W, this downlight provides consistent color uniformity and stability, maintaining its color temperature within 200K over five years.

Typical Applications

  • Residential Living Areas
  • Commercial Offices
  • Retail Spaces
  • Hospitality Venues
  • Outdoor Patios

Specifications

Dimensions

Length/Depth
8.19 in
Width/Diameter
8.19 in
Height
5.19 in
Weight
3.73 lb

Style & Materials

Finish
Black
Shape
Square

Characteristics & Features

Lamp Color
2700K, 3000K, 3500K, 4000K, 5000K, Selectable CCT
Color Rendering
90 CRI
Delivered Lumens
1600
Beam Angle
38
Dimmable
Yes
Trim
Open, Trimless
Reflector
Reflector

Electrical Information

Voltage
120V
Total Wattage
20W

Item Details

MPN
R4STLB
Brand
RAB Lighting
Family
Trimless Downlights
UPC
192552033862

Warranty & Certifications

Product Warranty
5 Years
Lamp Life
50,000 Hours
Product Rating
Wet Rated

Shipping & Returns

Shipping: Enjoy free standard shipping on most orders over $99. Exclusions apply for oversized & commercial items. We ship to the contiguous 48 United States.

Returns: We offer a 60-day return window for most items. Products must be in their original, unused condition with all packaging. Exclusions: Special orders, clearance, and custom items.

See Full Shipping Policy | See Full Return Policy

Frequently Asked Questions

What is the wattage of the RAB R4STLB downlight?

The RAB R4STLB downlight operates at 20 watts.

Is the RAB R4STLB suitable for wet locations?

Yes, the RAB R4STLB is wet rated, making it suitable for wet environments.

Can the RAB R4STLB downlight be dimmed?

Yes, it is dimmable down to 10% with compatible TRIAC/ELV dimming systems.

Does the RAB R4STLB require a recessed housing?

No, the R4STLB does not require a recessed housing or J-box for installation.

What is the beam angle of the RAB R4STLB?

The RAB R4STLB has a beam angle of 38 degrees.
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RAB Lighting

RAB Lighting is a leading manufacturer of professional-grade LED lighting, with a reputation built on innovation, performance, and an unwavering commitment to quality. For over 75 years, RAB has engineered durable, energy-efficient fixtures for commercial and industrial applications. From powerful floodlights to high-performance high bays, RAB is the definitive choice for contractors, specifiers, and facility managers who demand superior and reliable lighting solutions.

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