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Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376

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 Well Light Extrusion with Straight Cut - CAST Lighting XCBPWL2

    CAST Lighting Well Light Extrusion - Straight Cut

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 54.26
    $ 54.26 - $ 54.26
    $ 54.26

    CAST Lighting Well Light Extrusion - Straight Cut Brand: CAST Lighting | SKU: XCBPWL2 Product Overview The CAST Lighting Well Light Extrusion - Str...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 54.26
    $ 54.26 - $ 54.26
    $ 54.26
  • Cast Lighting Underwater Light Overall height 5.5" Width 4.5" Adjustable beam Angle. Heavy Base Includes three Countersunk Screw Holes. - CAST Lighting SUL20

    CAST Lighting Underwater MR-16 Light

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 194.29
    $ 194.29 - $ 194.29
    $ 194.29

    CAST Lighting Underwater MR-16 Light Brand: CAST Lighting | SKU: SUL20 Product Overview The CAST Lighting Underwater MR-16 Light is a CAST Lighting...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 194.29
    $ 194.29 - $ 194.29
    $ 194.29
  • Cast Lighting Stainless Thumb Screw - CAST Lighting XCHS832325

    CAST Lighting Stainless Thumb Screw for Classic MR-16 Bullet Light (Cbl1cb & Cbl1cbusa)

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 7.00
    $ 7.00 - $ 7.00
    $ 7.00

    CAST Lighting Stainless Thumb Screw for Classic MR-16 Bullet Light (Cbl1cb & Cbl1cbusa) Brand: CAST Lighting | SKU: XCHS832325 Product Overview...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 7.00
    $ 7.00 - $ 7.00
    $ 7.00
  • Cast Lighting SOURCE MR-16 Spot Light - CAST Lighting SBL20

    CAST Lighting MR-16 Bullet/Spot Light

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 127.27
    $ 127.27 - $ 127.27
    $ 127.27

    CAST Lighting MR-16 Bullet/Spot Light Brand: CAST Lighting | SKU: SBL20 Product Overview The CAST Lighting MR-16 Bullet/Spot Light is a CAST Lighti...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 127.27
    $ 127.27 - $ 127.27
    $ 127.27
  • Cast Lighting SOURCE MR-16 Economy Spot Light - CAST Lighting SBL10

    CAST Lighting MR-16 Economy Bullet/Spot Light

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 75.03
    $ 75.03 - $ 75.03
    $ 75.03

    CAST Lighting MR-16 Economy Bullet/Spot Light Brand: CAST Lighting | SKU: SBL10 Product Overview The CAST Lighting MR-16 Economy Bullet/Spot Light ...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 75.03
    $ 75.03 - $ 75.03
    $ 75.03
  • Cast Lighting O-Ring for Bullet Knuckle - CAST Lighting XCORAS568320

    CAST Lighting O-ring for Bullet Knuckle

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 2.80
    $ 2.80 - $ 2.80
    $ 2.80

    CAST Lighting O-ring for Bullet Knuckle Brand: CAST Lighting | SKU: XCORAS568320 Product Overview The CAST Lighting O-ring for Bullet Knuckle is a ...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 2.80
    $ 2.80 - $ 2.80
    $ 2.80
  • Cast Lighting Porch/Sconce MR-16 Up & Down Light - CAST Lighting SPL1

    CAST Lighting Porch/Sconce MR-16 Up & Down Light

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 172.71
    $ 172.71 - $ 172.71
    $ 172.71

    CAST Lighting Porch/Sconce MR-16 Up & Down Light Brand: CAST Lighting | SKU: SPL1 Product Overview The CAST Lighting Porch/Sconce MR-16 Up &...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 172.71
    $ 172.71 - $ 172.71
    $ 172.71
  • Cast Lighting O-Ring for Bullet Shroud - CAST Lighting XCORAS568136

    CAST Lighting O-ring for Bullet Shroud

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 2.70
    $ 2.70 - $ 2.70
    $ 2.70

    CAST Lighting O-ring for Bullet Shroud Brand: CAST Lighting | SKU: XCORAS568136 Product Overview The CAST Lighting O-ring for Bullet Shroud is a CA...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 2.70
    $ 2.70 - $ 2.70
    $ 2.70
  • Cast Lighting MR16 50W 24 Deg Medium - CAST Lighting CEXZC

    CAST Lighting 24°, Medium

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 24°, Medium Brand: CAST Lighting | SKU: CEXZC Product Overview The CAST Lighting 24°, Medium is a replacement lamp for compatible low...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 Socket 250 Deg C Teflon 6 Lead - CAST Lighting XCESMR161

    CAST Lighting MR-16 & MR-11 Bullet Socket

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 21.43
    $ 21.43 - $ 21.43
    $ 21.43

    CAST Lighting MR-16 & MR-11 Bullet Socket Brand: CAST Lighting | SKU: XCESMR161 Product Overview The CAST Lighting MR-16 & MR-11 Bullet Soc...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 21.43
    $ 21.43 - $ 21.43
    $ 21.43
  • Cast Lighting MR-16 Well Light with bronze Mouse Hole Grate - CAST Lighting CWLMR16G

    CAST Lighting Classic MR-16 Well Light with Original Slotted Grate (Cwlmr16g1)

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 449.01
    $ 449.01 - $ 449.01
    $ 449.01

    CAST Lighting Classic MR-16 Well Light with Original Slotted Grate (Cwlmr16g1) Brand: CAST Lighting | SKU: CWLMR16G Product Overview The CAST Light...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 449.01
    $ 449.01 - $ 449.01
    $ 449.01
  • Cast Lighting MR16 50W 36 Deg Wide - CAST Lighting CEXNC

    CAST Lighting 36°, Wide

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 36°, Wide Brand: CAST Lighting | SKU: CEXNC Product Overview The CAST Lighting 36°, Wide is a replacement lamp for compatible low-vol...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 50W 60 Deg X-Wide - CAST Lighting CFNVC

    CAST Lighting 60°, X-wide

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 60°, X-wide Brand: CAST Lighting | SKU: CFNVC Product Overview The CAST Lighting 60°, X-wide is a replacement lamp for compatible low...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR-16 Voltage Testing Tool - CAST Lighting CTESTMR16

    CAST Lighting MR-16 Voltage Testing Tool

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 26.90
    $ 26.90 - $ 26.90
    $ 26.90

    CAST Lighting MR-16 Voltage Testing Tool Brand: CAST Lighting | SKU: CTESTMR16 Product Overview The CAST Lighting MR-16 Voltage Testing Tool is a C...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 26.90
    $ 26.90 - $ 26.90
    $ 26.90
  • Cast Lighting MR-16 Well Light with convex lens in bronze ring cover - CAST Lighting CWLMR16

    CAST Lighting Classic MR-16 Well Light with Mouse-hole Grate (Cwlmr16g)

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 416.08
    $ 416.08 - $ 416.08
    $ 416.08

    CAST Lighting Classic MR-16 Well Light with Mouse-hole Grate (Cwlmr16g) Brand: CAST Lighting | SKU: CWLMR16 Product Overview The CAST Lighting Clas...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 416.08
    $ 416.08 - $ 416.08
    $ 416.08
  • Cast Lighting MR-16 Bullet Light - CAST Lighting CBL1CB

    CAST Lighting Classic MR-16 Bullet/Spot Light

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 197.87
    $ 197.87 - $ 197.87
    $ 197.87

    CAST Lighting Classic MR-16 Bullet/Spot Light Brand: CAST Lighting | SKU: CBL1CB Product Overview The CAST Lighting Classic MR-16 Bullet/Spot Light...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 197.87
    $ 197.87 - $ 197.87
    $ 197.87
  • Cast Lighting MR16 20W 12 Deg Narrow - CAST Lighting CESXC

    CAST Lighting 12°, Narrow

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 12°, Narrow Brand: CAST Lighting | SKU: CESXC Product Overview The CAST Lighting 12°, Narrow is a replacement lamp for compatible low...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 20W 24 Deg Medium - CAST Lighting CBBFC

    CAST Lighting 24°, Medium

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 24°, Medium Brand: CAST Lighting | SKU: CBBFC Product Overview The CAST Lighting 24°, Medium is a replacement lamp for compatible low...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 20W 60 Deg X-Wide - CAST Lighting CBAB60C

    CAST Lighting 60°, X-wide

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 60°, X-wide Brand: CAST Lighting | SKU: CBAB60C Product Overview The CAST Lighting 60°, X-wide is a replacement lamp for compatible l...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 35W 60 Deg X-Wide - CAST Lighting CFMW60C

    CAST Lighting 12°, Narrow

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 12°, Narrow Brand: CAST Lighting | SKU: CFMW60C Product Overview The CAST Lighting 12°, Narrow is a replacement lamp for compatible l...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 35W 12 Deg Narrow - CAST Lighting CFRBC

    CAST Lighting 12°, Narrow

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 12°, Narrow Brand: CAST Lighting | SKU: CFRBC Product Overview The CAST Lighting 12°, Narrow is a replacement lamp for compatible low...

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    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 35W 24 Deg Medium - CAST Lighting CFRAC

    CAST Lighting 24°, Medium

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 24°, Medium Brand: CAST Lighting | SKU: CFRAC Product Overview The CAST Lighting 24°, Medium is a replacement lamp for compatible low...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 50W 12 Deg Narrow - CAST Lighting CEXTC

    CAST Lighting 12°, Narrow

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 12°, Narrow Brand: CAST Lighting | SKU: CEXTC Product Overview The CAST Lighting 12°, Narrow is a replacement lamp for compatible low...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89
  • Cast Lighting MR16 35W 36 Deg Wide - CAST Lighting CFMWC

    CAST Lighting 60°, X-wide

    Cast Lighting
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

    CAST Lighting 60°, X-wide Brand: CAST Lighting | SKU: CFMWC Product Overview The CAST Lighting 60°, X-wide is a replacement lamp for compatible low...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 19.89
    $ 19.89 - $ 19.89
    $ 19.89

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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