Product Description
R4STL Trimless 4IN Square Triac 20W 5CCT 1600LM CRI90 38D White Smooth delivers high-end, architectural-quality lighting for residential and commercial applications. Designed by RAB Lighting, this trimless LED downlight features a sleek square design, 5 field-selectable color temperatures, and an impressive 38° beam angle, making it ideal for accent and general lighting alike.
Wattage: 20W
Lumen Output: Up to 1,934 lm
Color Temperature: 2700K / 3000K / 3500K / 4000K / 5000K (field-adjustable)
Beam Angle: 38°
CRI: 90+
Dimming: TRIAC/ELV down to 10%
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- Modern trimless design blends seamlessly with ceilings for a premium finish
- Field-adjustable CCT lets you choose the perfect color temperature for your space
- High efficacy of up to 101 lm/W reduces energy costs without sacrificing brightness
- Ideal for new construction or retrofit applications in residential or commercial settings
- Wattage: 20W LED replaces 125W incandescent
- Lumen Output: 1,675–1,934 lumens depending on CCT
- Color Temperature: Selectable (2700K–5000K)
- Beam Angle: 38°
- Color Accuracy: 90+ CRI with R9 > 50
- Dimming: TRIAC/ELV, down to 10%
- Construction: 4” square, white finish, smooth trim
- Remote Driver Box: Easy wiring with snap-in connectors and integrated mounting
| Technical Specs | |
|---|---|
| Input Voltage | 120V |
| Power Consumption | 20W |
| Dimming | Yes, TRIAC/ELV down to 10% |
| Driver Type | Constant Current, Class 2 |
| Lifespan | 50,000 Hours (L70) |
| Operating Temp | -13°F to 104°F (-25°C to 40°C) |
| Physical Specs | |
|---|---|
| Trim Size | 4” Square |
| Trim Style | Smooth, Trimless |
| Color / Finish | White |
| Lens | Clear polycarbonate |
| Material | Metal |
| Weight | 2.8 lbs |
| Performance Specs | |
|---|---|
| Field-Adjustable CCT | 2700K / 3000K / 3500K / 4000K / 5000K |
| Lumens | Up to 1,934 lm |
| Efficacy | Up to 101 lm/W |
| CRI | 90+, R9 > 50 |
| Beam Angle | 38° |
- Luxury residential ceilings
- Retail and hospitality environments
- Architectural commercial interiors
- Gallery and showroom lighting
- Use included template to cut opening in ceiling
- Secure trim and patch with plaster or stucco for a seamless look
- Wire connections using provided quick connectors
- Adjust CCT using integrated dip switch before final fixture placement
- Mount driver box remotely in ceiling cavity
Q: Is the R4STL compatible with recessed housings?
A: No, it is designed for trimless recessed mounting without a housing.
Q: Can the color temperature be changed after installation?
A: Yes, but the CCT dip switch is located on the driver box, which must be accessible.
Q: What dimmers are compatible with this fixture?
A: It works with most TRIAC and ELV dimming systems—see the dimmer compatibility list.
Q: Is the fixture airtight and IC-rated?
A: Yes, it's airtight and suitable for direct contact with insulation (IC-rated).
Q: What’s the lifespan of the LED?
A: The R4STL is rated for 50,000 hours based on IES LM-70 standards.
Q: Does the fixture come with a driver?
A: Yes, the 120V TRIAC dimmable driver is included and mounts remotely.
Q: Can this be installed in damp or wet locations?
A: Yes, it's suitable for dry, damp, or wet environments.
Q: Is this product ENERGY STAR certified?
A: Yes, it meets ENERGY STAR® Version 2.2 standards.
Q: Does it meet California Title 24 compliance?
A: Yes, it can be used to conform with California Title 24 Part 6 requirements.
