Search Authority

RA85LED 20W LED 58cm Spotlight – Bright, Efficient & Long-lasting Light

The RA85LED 20W LED 58mm fixture is a compact, high-efficiency lighting module built for demanding commercial and residential applications. Designed around a 20 watt LED array,...

Mara Ellison Aug 08, 2026
RA85LED 20W LED 58cm Spotlight – Bright, Efficient & Long-lasting Light

The RA85LED 20W LED 58mm fixture is a compact, high-efficiency lighting module built for demanding commercial and residential applications. Designed around a 20 watt LED array, this 58 millimeter profile delivers bright, stable illumination while maintaining a slim form factor that fits into tight installation spaces.

Engineered for consistent color rendering and thermal reliability, the RA85LED 20W LED 58mm solution is ideal for task lighting, accent lighting, and integrated fixture designs. Its focused optics and robust construction support long-term deployment in both retrofit and new construction projects.

Specification Value Test Condition Typical / Notes
Model RA85LED Product Code Identifies the 58mm, 20 watt LED module
Power 20 W Nominal operating at rated voltage Delivers high efficiency at full power
Length 58 mm Outer diameter for round modules Optimized for compact luminaire designs
Light Output 2100–2400 lm Measured at module level Correlated to 20 W LED drive
Color Temperature 2700–6500 K selectable Adjustable via driver or control Warm to daylight ranges available
Color Rendering Index >80 Ra, up to >90 Ra Measured CRI at nominal conditions Higher options available for premium accuracy
Input Voltage 100–277 VAC Universal AC supply compatibility Includes power factor correction
Operating Temperature -20 to +50 °C Ambient range for reliable operation Thermal management built into design
Dimming 0–10 V / PWM compatible Standard control protocol support Requires compatible dimming driver
Warranty 3–5 years Manufacturer coverage period Conditions apply based on deployment

RA85LED 20W LED 58mm Performance Characteristics

Efficiency and Thermal Design

The RA85LED 20W LED 58mm module uses high-efficacy LEDs and a low-loss driver to maximize light output per watt. Optimized thermal pathways and heat sinking help maintain lumen stability over long operating periods. This design reduces lumen depreciation and extends the practical service life of the fixture.

Optical Control and Compatibility

With a 58 millimeter profile, the RA85LED 20W LED 58mm integrates easily into slim downlights and decorative fixtures. The beam options and optics provide precise light placement, minimizing spill and improving task utility. It works seamlessly with standard dimmers and control systems when paired with compatible drivers.

Installation and Integration Guidelines

Mounting and Electrical Connections

Installers should verify voltage compatibility and follow local electrical codes before connecting the RA85LED 20W LED 58mm module. Use insulated tools and ensure proper polarity for DC control wiring. The compact 58mm form factor allows retrofit into existing fixtures with minimal modification.

Environmental and Safety Considerations

In enclosed fixtures, confirm thermal performance stays within the specified operating range. Select ingress protection ratings that match the installation environment. Proper grounding and strain relief improve safety and long-term reliability.

Performance Validation and Testing

Longevity and Consistency

Third-party testing of the RA85LED 20W LED 58mm shows stable output across temperature cycles. L70 and L90 lifespan metrics indicate reliable operation in commercial spaces. Regular maintenance checks help identify driver issues before they affect performance.

Key Takeaways for Implementation

  • Confirm compatibility with system voltage, dimming controls, and driver specifications before installation.
  • Plan thermal management strategies, especially in sealed or confined fixtures.
  • Use the 58mm diameter advantage to simplify retrofits into slim or legacy housings.
  • Schedule periodic performance checks to monitor lumen maintenance and color consistency over time.
  • Document wiring and control configurations to streamline maintenance and future upgrades.

FAQ

Reader questions

What is the typical light output for the RA85LED 20W LED 58mm at full power?

The module typically produces between 2100 and 2400 lumens when operated at the rated 20 watt drive under standard conditions.

Can this module be used with phase-cut dimmers in residential settings?

Compatibility depends on the driver design; confirm with the manufacturer or driver supplier that the RA85LED 20W LED 58mm supports phase-cut dimming if required for your residential application.

How does the 58mm diameter affect retrofit options compared to larger modules?

The 58mm diameter allows the RA85LED 20W LED 58mm to fit into many slim downlight cans and decorative housings that cannot accommodate thicker LED modules, simplifying retrofit projects.

What should be verified before installing the RA85LED 20W LED 58mm in an enclosed fixture?

Check the thermal characteristics of the enclosed space and ensure ambient temperatures remain within the specified operating range to prevent overheating and premature lumen loss.

Related Reading

More pages in this topic cluster.

Word Scramble Worksheets 15 Free Printables from Worksheetscom

Word scramble worksheets from 15 worksheetscom provide targeted vocabulary practice for students and language learners. These printable activities help users recognize letter pa...

Read next
Circle of Willis Anatomy: The Ultimate Visual Guide

The circle of Willis anatomy serves as a critical cerebral arterial ring that maintains balanced cerebral perfusion. Understanding its precise arrangement helps clinicians antic...

Read next
Simple Handmade Birthday Cards for Husband: Easy & Thoughtful DIY Ideas

Handmade birthday cards for husband add a personal, heartfelt touch to your celebration while showing you truly pay attention to what he loves. Simple designs keep the focus on...

Read next