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MR-16

MR16 lamps are the go-to light source for landscape spots and path fixtures—compact, efficient, and easy to swap. Choose long-life LED retrofits or classic halogen, with beam options from tight spot to wide flood in warm, welcoming color temperatures.

Shop by need

  • LED MR16 (12V): 3–8W, dimmable options, high-CRI choices for rich plant/stone color
  • Halogen MR16: traditional 20/35/50W for legacy installs and maximum punch
  • Bases & voltage: GU5.3 bi-pin (typical 12V landscape); GU10 twist-lock (120V fixtures)
  • Beams: narrow spot (~15°), spot (~25°), flood (~36°), wide flood (60°+)
  • Color temps: 2700K extra-warm, 3000K warm, 4000K neutral (select models)
  • Accessories: lenses, hex louvers, glare shields, colored filters

 

  • Cast Lighting 55 Deg X-Wide, Level 5, 6 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR166XW30

    CAST Lighting 55° Extra Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

    CAST Lighting 55° Extra Wide 3000K Brand: CAST Lighting | SKU: SLMR166XW30 Product Overview The CAST Lighting 55° Extra Wide 3000K is a CAST Lighti...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90
  • Cast Lighting 55 Deg X-Wide, Level 2, 2 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR162XW30

    CAST Lighting 55° Extra Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81

    CAST Lighting 55° Extra Wide 3000K Brand: CAST Lighting | SKU: SLMR162XW30 Product Overview The CAST Lighting 55° Extra Wide 3000K is a CAST Lighti...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81
  • Cast Lighting 55 Deg X-Wide, Level 4, 5Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR165XW30

    CAST Lighting 80° Extra Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 80° Extra Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR165XW30 Product Overview The CAST Lighting 80° Extra Extra Wide 2700K is a...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 80 Deg XX-Wide, Level 4, 5 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR165XXW27

    CAST Lighting 40° Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 40° Wide 2700K Brand: CAST Lighting | SKU: SLMR165XXW27 Product Overview The CAST Lighting 40° Wide 2700K is a CAST Lighting LED repl...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 55 Deg X-Wide, Level 1, 1 Watt, MR-16 LED Lamp - CAST Lighting SLMR161XW27

    CAST Lighting 40° Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81

    CAST Lighting 40° Wide 3000K Brand: CAST Lighting | SKU: SLMR161XW27 Product Overview The CAST Lighting 40° Wide 3000K is a CAST Lighting LED repla...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81
  • Cast Lighting 55 Deg X-Wide, Level 3, 4 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR164XW27

    CAST Lighting 30° Medium 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 30° Medium 3000K Brand: CAST Lighting | SKU: SLMR164XW27 Product Overview The CAST Lighting 30° Medium 3000K is a CAST Lighting LED r...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88
  • Cast Lighting 40 Deg Wide, Level 5, 6 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR166W30

    CAST Lighting 40° Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

    CAST Lighting 40° Wide 3000K Brand: CAST Lighting | SKU: SLMR166W30 Product Overview The CAST Lighting 40° Wide 3000K is a CAST Lighting LED replac...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90
  • Cast Lighting 55 Deg X-Wide, Level 3, 4 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR164XW30

    CAST Lighting 80° Extra Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 80° Extra Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR164XW30 Product Overview The CAST Lighting 80° Extra Extra Wide 2700K is a...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88
  • Cast Lighting 55 Deg X-Wide, Level 2, 2 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR162XW27

    CAST Lighting 30° Medium 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81

    CAST Lighting 30° Medium 3000K Brand: CAST Lighting | SKU: SLMR162XW27 Product Overview The CAST Lighting 30° Medium 3000K is a CAST Lighting LED r...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81
  • Cast Lighting 40 Deg Wide, Level 2, 2 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR162W27

    CAST Lighting 30° Medium 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81

    CAST Lighting 30° Medium 2700K Brand: CAST Lighting | SKU: SLMR162W27 Product Overview The CAST Lighting 30° Medium 2700K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81
  • Cast Lighting 55 Deg X-Wide, Level 4, 5Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR165XW27

    CAST Lighting 30° Medium 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 30° Medium 3000K Brand: CAST Lighting | SKU: SLMR165XW27 Product Overview The CAST Lighting 30° Medium 3000K is a CAST Lighting LED r...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 40 Deg Wide, Level 1, 1 Watt, MR-16 LED Lamp - CAST Lighting SLMR161W30

    CAST Lighting 80° Extra Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81

    CAST Lighting 80° Extra Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR161W30 Product Overview The CAST Lighting 80° Extra Extra Wide 2700K is a ...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 31.81
    $ 31.81 - $ 31.81
    $ 31.81
  • Cast Lighting 40 Deg Wide, Level 3, 4 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR164W30

    CAST Lighting 55° Extra Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 55° Extra Wide 3000K Brand: CAST Lighting | SKU: SLMR164W30 Product Overview The CAST Lighting 55° Extra Wide 3000K is a CAST Lightin...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88
  • Cast Lighting 40 Deg Wide, Level 4, 5 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR165W27

    CAST Lighting 30° Medium 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 30° Medium 2700K Brand: CAST Lighting | SKU: SLMR165W27 Product Overview The CAST Lighting 30° Medium 2700K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 40 Deg Wide, Level 4, 5 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR165W30

    CAST Lighting 50° Extra Wide 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 50° Extra Wide 3000K Brand: CAST Lighting | SKU: SLMR165W30 Product Overview The CAST Lighting 50° Extra Wide 3000K is a CAST Lightin...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 40 Deg Wide, Level 5, 6 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR166W27

    CAST Lighting 30° Medium 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

    CAST Lighting 30° Medium 2700K Brand: CAST Lighting | SKU: SLMR166W27 Product Overview The CAST Lighting 30° Medium 2700K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90
  • Cast Lighting 30 Deg Medium, Level 4, 5 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR165M27

    CAST Lighting 20° Narrow 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 20° Narrow 3000K Brand: CAST Lighting | SKU: SLMR165M27 Product Overview The CAST Lighting 20° Narrow 3000K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 30 Deg Medium, Level 4, 5 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR165M30

    CAST Lighting 55° Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81

    CAST Lighting 55° Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR165M30 Product Overview The CAST Lighting 55° Extra Wide 2700K is a CAST Lightin...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 37.81
    $ 37.81 - $ 37.81
    $ 37.81
  • Cast Lighting 30 Deg Medium, Level 3, 4 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR164M30

    CAST Lighting 55° Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 55° Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR164M30 Product Overview The CAST Lighting 55° Extra Wide 2700K is a CAST Lightin...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88
  • Cast Lighting 40 Deg Wide, Level 3, 4 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR164W27

    CAST Lighting 30° Medium 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 30° Medium 2700K Brand: CAST Lighting | SKU: SLMR164W27 Product Overview The CAST Lighting 30° Medium 2700K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88
  • Cast Lighting 30 Deg Medium, Level 3, 4 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR164M27

    CAST Lighting 20° Narrow 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

    CAST Lighting 20° Narrow 3000K Brand: CAST Lighting | SKU: SLMR164M27 Product Overview The CAST Lighting 20° Narrow 3000K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 34.88
    $ 34.88 - $ 34.88
    $ 34.88

  • CAST Lighting Classic MR-16 Bullet/Spot Light USA

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 274.77
    $ 274.77 - $ 274.77
    $ 274.77

    CAST Lighting Classic MR-16 Bullet/Spot Light USA Brand: CAST Lighting | SKU: CBL1CBUSA Product Overview The CAST Lighting Classic MR-16 Bullet/Spo...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 274.77
    $ 274.77 - $ 274.77
    $ 274.77
  • Cast Lighting 30 Deg Medium, Level 5, 6 Watt, MR-16 LED Lamp, 3000K Color Temp - CAST Lighting SLMR166M30

    CAST Lighting 80° Extra Extra Wide 2700K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

    CAST Lighting 80° Extra Extra Wide 2700K Brand: CAST Lighting | SKU: SLMR166M30 Product Overview The CAST Lighting 80° Extra Extra Wide 2700K is a ...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90
  • Cast Lighting 30 Deg Medium, Level 5, 6 Watt, MR-16 LED Lamp, 2700K Color Temp - CAST Lighting SLMR166M27

    CAST Lighting 20° Narrow 3000K

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

    CAST Lighting 20° Narrow 3000K Brand: CAST Lighting | SKU: SLMR166M27 Product Overview The CAST Lighting 20° Narrow 3000K is a CAST Lighting LED re...

    Ver todos los detalles
    $ 0.00 - $ 0.00
    $ 0.00
    $ 48.90
    $ 48.90 - $ 48.90
    $ 48.90

Quick choosing guide

  1. Match the socket & voltage: most landscape fixtures use 12V GU5.3. Only choose GU10/120V if your fixture is line-voltage.
  2. Pick the beam for the target: 15–25° to highlight trees/statues; ~36° for general accents; 60°+ to wash walls or broad plants.
  3. Set brightness & look: LED 4–5W ≈ old 35W halogen; 6–8W ≈ 50W. Choose 2700–3000K for warm gardens; 4000K for a crisper tone.
  4. Plan control: using dimmers or multi-tap transformers? Choose dimmable, 12V AC/DC compatible LEDs and keep voltage drop in check.

 

Pro tips: Aim for ~11–12V at the farthest 12V fixture, keep color temperature consistent within a zone, and use wet-rated, enclosed fixtures near irrigation. If LED lamps flicker or won’t dim low, add headroom on the transformer, use a hub layout, or choose lamps rated for magnetic/electronic systems.

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