The ultimate LED refit light; The Sigma Large PowerLED fixture mounts with either springs or screws. Its special adapter plate and large diameter trim ring permits installation in to a range of existing cut-out holes from 2.56″ (65mm) through 3.65″ 3.65″ (93mm). Stainless steel mounting springs are provided for interior mounting (e.g.  headliner-wrapped or paneled ceilings). For secure mounting in to hard ceilings or exterior locations, simply remove the springs and mount with #4 flathead screws. A 10-40VAC/DC universal input allows Sigma to be used with 12V, 24V, or 32V systems and for voltage supplied by magnetic AC transformer as well.

Sigma Large PowerLED, Brushed Stainless Steel, Warm White


  • Optimized functionality with the Intervolt Switchmode dimmers*
  • Hole (cut-out) size matches popular halogen recessed spots
  • 10-40VAC/DC input voltage (from battery or magnetic transformer)
  • May be installed with springs or screws
  • Part of matching family (small, large, surface-mount fixture).

*Although Sigma may work with other digital (PWM) DC dimmers, the Sigma was optimized to be 100% compatible with our InterVolt Switchmode Dimmers. Sigma is not compatible with low voltage AC dimmers (used with transformers).


Trim Ring (Bezel) Finish/Material

Brushed Stainless Steel

Housing Finish/Material

E-coat aluminum

Lens Material

Acrylic polymer

Trim Ring (Bezel) Dimensions

4.35″ (110mm) dia x 0.34″ (9mm) height

Cut-out Dimensions

From 2.56″ (65mm) through 3.65″ (93mm)


5.06″(Width), 1.87″(Height), 5.56″(Length)

Recessed Depth

0.90″ (23mm)

Input Voltage


Power Consumption




Output Color

Warm White

Luminous Flux

197 lms

Correlated Color Temperature (CCT)


Color Rendering Index (CRI)


Beam Angle

83 dg.

Max Operating Temperature

130 dg. F (54 dg. C)

Lifetime Hours

50,000 hrs. (L70)

Dimmer Compatibility

Intervolt Switchmode DC Dimmers

Dimmer Control Interface

N/O, 1P/1T Momentary Push-Button

Mounting Method

Screws or springs

Install Location

Ceiling, interior/exterior

Ingress Protection

IP65 (applies only to frontal water exposure, i.e. Exposed surface)


Class III

Electrical Protections

Reverse Polarity, Transients, Spikes

Certifications & Compliance





5 Years / 1 Year Finish
Weight 1 lbs
Dimensions 5.56 × 5.06 × 1.87 in


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