RAB R34S-4-B 4 in Square Smooth Retrofit Downlight — 6W / 600 lm / Selectable CCT / 120V / Black

The RAB R34S-4-B is a 4 in square smooth retrofit downlight in black finish, designed as an economical CCT-adjustable replacement for traditional 60W incandescent recessed fixtures. Smooth flat profile polycarbonate lens diffuser, UV-resistant polycarbonate construction, and E26 Edison base adapter for compatibility with most standard recessed can housings. Field-selectable CCT via dip switch — 5 color temperatures in 1 SKU. 120V input. Wet rated. California Title 20 compliant.

Key Features

• Trim Style: Square smooth | Black finish | Smooth flat profile polycarbonate lens diffuser for even, uniform light distribution
• Construction: UV-resistant polycarbonate | E26 Edison base adapter included | Fits standard recessed can housings
• Wattage: 6W (replaces 60W incandescent)
• Light Output: 600 lm | Measured: 2700K: 604 lm | 3000K: 615 lm | 3500K: 628 lm | 4000K: 619 lm | 5000K: 601 lm
• Efficacy: 100 lm/W
• Beam Angle: 90°
• Field-Selectable CCT: 2700K / 3000K / 3500K / 4000K / 5000K via dip switch
• CRI: 90 | R9 >50 | <4-step MacAdam Ellipse | Color stability ≤200K over 5 years
• Input Voltage: 120V | 60 Hz | Input Current: 60mA
• Driver: Constant Current | PF: ≥0.7 | Flicker: ≤30%
• Dimming: TRIAC/ELV dimmable to 10% (120V) — see RAB Dimmer Compatibility List
• Environment: Dry, damp, and wet rated | IC rating depends on housing used | Not Air Tight | Op temp: -4°F to 104°F
• Certifications: UL Classified | UL Recognized | ENERGY STAR Certified | California Title 20 Compliant (DLR0165(R34S-4-B)) | CEC: Lawful for CA | Trade Agreements Act Compliant | IESNA LM-79 & LM-80 | RoHS | FCC Part 15
• Note: Not Title 24 JA8 compliant. Not DLC listed.
• Lifespan: 50,000 hours L70 | Warranty: 5-year no-compromise warranty

Light Output & Performance

The R34S-4-B delivers 600 lm at 6W (100 lm/W), replacing a 60W incandescent at a fraction of the energy cost. The 90° beam angle and smooth flat profile polycarbonate diffuser provide even, uniform illumination suited to general lighting applications. With a CRI of 90 and R9 >50, colors render accurately across all five CCT settings — measured output ranging from 601 lm (5000K) to 628 lm (3500K). The <4-step MacAdam Ellipse binning ensures consistent fixture-to-fixture color uniformity. Color temperature is warranted to shift no more than 200K over 5 years.

Electrical & Installation

The R34S-4-B operates on 120V input at 60mA with a constant current driver. TRIAC/ELV dimmable to 10% — see the RAB Dimmer Compatibility List for compatible dimmers. PF ≥0.7, flicker ≤30%. Wet rated for dry, damp, and wet environments. IC rating depends on the recessed housing used. Not air tight. Rated for operation from -4°F to 104°F. Installs via E26 Edison base into most standard recessed can housings — no special housing required.

Compatible Accessories

• 4 in New Construction Housing: NDCANIC4R
• 4 in Retrofit Housing: RDCANIC4R

Typical Applications

• Retrofit replacement for 60W incandescent recessed fixtures
• Residential and light commercial general lighting
• Budget-conscious projects requiring CCT flexibility across 2700K–5000K
• Wet-rated applications: bathrooms, covered outdoor areas
• California Title 20 compliant installations

What’s Included

• RAB R34S-4-B 4 in square smooth retrofit downlight
• E26 Edison base adapter