Exterior Inground 400 Series

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The Exterior™ Inground 400 series is a range of uncomplicated, easy-to-use color-changing LED luminaires. Perfect for installations with visible light sources, the Exterior Inground series combines the benefits of dynamic light and discreet installation. The recessed housing can be made to fit any type of surface with a trim ring available in beveled and flush-mount versions, for discreet installation both day and night.

The series is available in various configurations. The Exterior Inground 400™ has a narrow beam. The Exterior Inground 410™ blends the output of its RGBW LED sources in its lenses, delivering perfectly pre-mixed colors. And the Exterior Inground 420™ gives variable color temperature white light from 2700 to 6500 K.

  • Bright, efficient in-ground fixture with full LED color mixing
  • Advanced optical performance with uniform distribution of light and color
  • Durable, low-maintenance construction
  • Configurable design

    The Exterior Inground 400 features a 19 mm tempered glass cover which is available either as clear glass or with an anti-skid surface for use in pedestrian areas. The top ring is available in flush or beveled mounting options and the entire installation can be carried out without breaking the factory seal.

  • Sturdy, waterproof construction

    Cable glands and a separate connections compartment give a sealed unit with no water ingress via the factory-mounted DMX and power cables. The Inground 400 also features a Gore-Tex vent to equalize temperature-generated pressure fluctuation.

  • Clever status indication

    The Exterior Inground 400’s intuitive LED status indicators allow for fast, convenient power and DMX status readings. Remote Device Management (RDM) allows more detailed readouts.

  • Built-in glare shield

    A built-in glare shield effectively reduces glare from the LEDs, making the Exterior Inground 400 less distracting for pedestrians and leaving only the effect lighting to be enjoyed.

  • 4000 kg drive-over rating

    The hot-dip galvanized steel installation sleeve provides a heavy-duty foundation for the Exterior Inground 400 that allows for installation in vehicle traffic areas.


  • Choice of premixed RGBW, single-color RGBW or variable CT white LEDs
  • Built-in glare shield for high visual comfort
  • Flush-mount and beveled trim ring options for installation in any groundwork
  • Choice of five beam angle options
  • Remote control and configuration via DMX and RDM
  • Rugged drive-over IP67 housing

Tech Specs

PhysicalFixtureHeight: 315 mm (12.4 in.)Outer diameter at top of fixture: 310 mm (12.2 in.)Weight: 14.7 kg (32.5 lbs.)Top ring (trim ring)Flush-mount top ring outer diameter: 329 mm (13.0 in.)Flush-mount top ring thickness: 7 mm (0.3 in.)Beveled top ring outer diameter: 340 mm (13.4 in.)Beveled top ring thickness: 5 mm (0.2 in.)Installation SleeveInstallation sleeve height: 400 mm (15.8 in.)Installation sleeve base flange external diameter: 416 mm (16.4 in.)
Dynamic EffectsAll modelsIntensity: 0 - 100%Exterior Inground 400 and 410Color mixing: RGBWExterior Inground 420Color temperature control: 2700 K - 6500 K
Control and ProgrammingAll modelsControl systems: DMX, RDMDMX addressing and fixture setup: RDMFixture status monitoring: Multi-color status LED visible through top glassFirmware update: Serial upload via DMX linkDMX compliance: USITT DMX512-ARDM compliance: ANSI/ESTA E1.20Receiver: RS-485Exterior Inground 400 and 410DMX channels: 3/4Exterior Inground 420DMX channels: 2
OpticsAll modelsLED manufacturer: CreeMinimum LED lifetime: 50 000 hours (to >70% luminous output)**Figure obtained under manufacturer's test conditionsExterior Inground 400Light source: R, G, B and W single-color LEDsBeam angle optionsNarrow diffuser: 10.5°Medium diffuser: 20°Wide diffuser: 41°Asymmetric diffuser: 52° x 12°Directional (8°): 67° x 24°Directional (20°): 69° x 24°Exterior Inground 410Light source: RGBW quad-color LEDsBeam angle optionsNarrow diffuser: 22°Medium diffuser: 29°Wide diffuser: 50°Asymmetric diffuser: 59° x 25°Directional (8°): 76° x 33°Directional (20°): 79° x 33°Exterior Inground 420Light source: Warm (2700 K) and cool (6500 K) LEDsBeam angle optionsNarrow diffuser: 10.5°Medium diffuser: 20°Wide diffuser: 41°Asymmetric diffuser: 52° x 12°Directional (8°): 67° x 24°Directional (20°): 69° x 24°
Photometric DataExterior Inground 400Maximum luminous output: 5700 lumensExterior Inground 410Maximum luminous output: 4800 lumensExterior Inground 420Maximum luminous output: 6600 lumens
ConstructionFixture housing: AluminumFront glass: 19 mm (0.8 in.) tempered glass (clear and anti-skid versions)Finish: Black powder coating over anodizingTrim ring (top ring): Stainless steelInstallation method: In installation sleeveColor: BlackCorrosion resistance: C5-M (very high corrosivity / marine, ISO 12944)Protection rating: IP67Impact resistance: IK10RoHS compliantInstallation sleeve: Hot-dip galvanized steelWeight resistance (in installation sleeve with stable groundwork):4000 kg (from vehicle tire for example)
InstallationInstallation method: Installation sleeve (ordered separately)Minimum distance to illuminated surfaces: 0.2 m (0.6 ft.)
ConnectionsPower connection: 1.8 m (5.9 ft.) cable tail without connectorData connection: 1.8 m (5.9 ft.) open ended 5-conductor combined input + output cable tailPower and data cable entries: IP68/69 cable glands
ElectricalAC power: 100-277 V~ nominal, 50/60 HzPower supply unit: Integrated, auto-sensing multi-voltagePower consumption, steady state, all LEDs at zero intensity: 11 WSurge protection: 4 KV
Typical Power and Current120 V, 60 Hz: 1.3 A, 142 W, PF 0.99230 V, 50 Hz: 0.7 A, 142 W, PF 0.97Measurements made at nominal voltage. Allow for a deviation of +/- 10 %
ThermalCooling: Conduction / convectionMaximum ambient temperature (Ta max.): 45° C (113° F)Minimum ambient temperature (Ta min.): -30° C (-4° F), power must be maintained below 0° C (32° F)Maximum surface temperature, steady state, at 40° C ambient:65° C (149° F)Total heat dissipation (calculated, +/- 10%): 490 BTU/hr.
ApprovalsEU safety: EN60598-2-5 (EN60598-1), EN60598-2-13, EN62471, EN62493EU EMC: EN55015, EN61547, EN61000-3-2, EN6100-3-3, EN61000-4-2, EN6100-4-4, EN6100-4-5US safety: ANSI/UL 1598US EMC: 47 CFR Part 15 Class ACanadian safety: CSA C.22.2 No. 250Australia/NZ: RCM
AccessoriesInstallation sleeve for Inground 400: P/N 91611841Installation Lid for flush mount top ring installations: P/N 91616086Installation Lid for beveled top ring installations: P/N 91616087Please order Installation Sleeves separately from fixtures
Ordering InformationInground 4xx, new install: P/N 90507100HUInground 4xx, replacement (for existing Inground 200 installations): P/N 90507150HUInground 4xx, replacement (for existing Inground 200 installations), no top ring or top glass: P/N 90507110HUProducts are ordered pre-configured by selecting from a range of options - see elsewhere on website or contact your Martin™ supplier


Filename Version Language Size Uploaded
Exterior Inground 400 Series Firmware 1.0.0    40.3 KB May 19, 2018
Exterior Inground 400 Series - Bodentank Installationshinweise de  566 KB Jan 02, 2018
Exterior Inground 400 Series - Installation Sleeve Guide en  954 KB Oct 02, 2017
Exterior Inground 400 Series - Guide d’Installation du Support fr  615 KB Jan 02, 2018
Exterior Inground 400 Series - Bedienungsanleitung de  1.08 MB Jan 02, 2018
Exterior Inground 400 Series - User Manual en  1.91 MB Nov 21, 2017
Exterior Inground 400 Series - Manuel d'Utilisation fr  1.92 MB Jan 02, 2018
Order Specifications Sheet     1.28 MB May 24, 2018
Exterior Inground 400 Series Spec Sheet-English   en  966 KB Jul 09, 2018
Exterior Inground Series - Photometric files en  244 KB Mar 13, 2018
3D Symbols
Exterior 400 Inground With Bevelled ring-3D-DWG en  35.1 MB Sep 19, 2016
Exterior 400 Inground With Bevelled ring-3DS en  7.63 MB Aug 30, 2016
Exterior 400 Inground With Flush Ring-3D DWG en  2.7 MB Sep 19, 2016
Exterior 400 Inground With Flush Ring-3D-DWG en  3.91 MB Aug 30, 2016
Exterior 400 Inground With Flush Ring-3DS en  7.11 MB Aug 30, 2016
Vectorworks Symbols 2.5  en  110 MB Mar 27, 2018
Exterior Inground 400 LED - Dimensions - Installation sleeve, flush en  1.6 MB Aug 11, 2017
Exterior Inground 400 LED - Dimensions - Installation sleeve, beveled en  1.59 MB Aug 11, 2017
Exterior 400 Inground - 2D dimensions (PDF) en  224 KB Sep 19, 2016
Exterior 400 Inground - 2D dimensions (DXF) en  3.83 MB Aug 30, 2016
Exterior 400 Inground - 2D dimensions (DWG) en  1.27 MB Aug 30, 2016
Cad Drawings
Vectorworks Symbols     110 MB Sep 20, 2017
Service Notes
Exterior products - Performing a vacuum test - Tech note en  1.9 MB May 01, 2017
Exterior Inground 400 Series – ETL Authorization to Mark   327 KB Sep 11, 2017
Exterior Inground 400 Series - Product verification and reliability report   444 KB Oct 13, 2017
Exterior Inground 400 Series Declaration of Conformity     114 KB Nov 05, 2018

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Exterior Inground 400 Series