FX Luminaire Terra TN-61 cowling in-grade light installed flush in a stone paver, washing a shrub at night

FX Luminaire Terra TN-61 and TG-61 In-Ground Lights: Cost-Effective Installs

FX Luminaire Terra TN-61 and TG-61 in-ground lights are the new cost-effective half of the Terra family: drop-in MR-16 lamps, brass or composite faceplates, and the same 4-inch conduit install contractors already use on the premium TN-60 and TG-60. FX announced the pair in August 2026 as “built for fast, reliable installs” — and that is the point. You get IP66/IP67 water protection, IP68 submersion testing, and a clean flush look without specifying a fully integrated brass in-grade on every head.

If the job needs integrated LEDs, Luxor color, and solid-brass housings, the Terra TG-60 ground wash we stock is still the step-up. Use this guide to pick TN vs TG, 61 vs 60, and the faceplate that actually matches the aiming you sold.

FX Luminaire Terra TN-61 in-grade lights with grill, cowling, and ring faceplates on composite housings
TN-61 faceplates on the same composite can: grill (GR) for foot traffic, cowling (CW) for glare control, and ring (RG) for an open uplight.

Terra at a glance: TN-61, TG-61, TN-60, TG-60

All four fixtures are midsized in-grades: about 5.3 inches across, 4.3 inches deep, with a 10-foot 18 AWG lead. They drop into North American 4-inch Schedule 40 or SDR-21 thin-wall conduit with the preinstalled T6X collet. The split is optical job + lamp strategy, not a different hole in the hardscape.

ModelJobLight sourceHousing / faceplateAimingBest when
TN-61In-grade uplightMR-16 (P4 / P5 / ZD5, or NL)Composite housing; brass or composite faceplate360° rotation + 0–15° gimbalTrees, walls, columns on a lamp-based budget
TG-61Ground washMR-16 (P4 / P5 / ZD5)Composite housing; brass or composite faceplateFour-quadrant 90°–360° + 360° colletWalks, lawns, and low-glare path wash
TN-60In-grade uplightIntegrated 3 / 6 / 9 LED or ZDCSolid brass360° rotation + 0–15° gimbalHigh-traffic hardscape, long LED life, Luxor color
TG-60Ground washIntegrated 3 / 6 / 9 LED or ZDCSolid brassField-adjustable 90°–360° silicone blindsDrive-over wash with Luxor zone / dim / RGBW

Shared on all four: alignment-locking tamper-resistant hardware, an overhanging flange that hides a sloppy core, and the optional CPK-T6X / CPK-TN6X Concrete Pour Kit for a level, rotatable mount in new concrete.

Terra TN-61: the cost-effective in-grade uplight

The Terra TN-61 is the directional in-grade. FX built it for contractors who want a sealed well light that aims like a professional fixture but still takes a standard MR-16 GU5.3 lamp. Housing is composite; the faceplate can be brass (cowling, grill, or ring) or composite in the same three styles. That is how you keep the look of a brass lid on the boardwalk heads and save composite on the ones buried in planting beds.

Factory lamp options:

  • P4 — 4.3 VA Pro LED, about 190 lumens
  • P5 — 5.4 VA Pro LED, about 360 lumens
  • ZD5 — 5.4 VA Luxor ZD lamp, about 360 lumens (zone/dim with a Luxor controller)
  • NL — socket only, lamp by others

Color temps are Warm 2700K or Soft 3000K. Beams are Flood (~30–35°) or Wide Flood (60°). Input is 10–15 V. CRI is 85+. Rated lamp life is 40,000 hours L70 — shorter than the integrated TN-60 boards, which is the trade you make for a replaceable MR-16.

Aiming is the reason to spec TN instead of a cheap well light: 360° rotation and a 0° to 15° internal gimbal, tool-free after the fixture is in the hole. Pair a cowling (CW) when you need glare control toward a walk, a grill (GR) when feet will be over the lens, or a ring (RG) for a clean open uplight on a trunk or facade.

Terra TG-61: ground wash with a four-quadrant faceplate

The Terra TG-61 is the wash sibling. Same hole, same conduit, same MR-16 power options (P4 / P5 / ZD5 at 4.3 or 5.4 VA). Output is a low-glare ground wash, not a tree punch: roughly 8–13 lumens at a 180° setting, which is the right order of magnitude for walks and turf. You are lighting the ground plane, not a canopy.

The useful trick is the four-quadrant faceplate. Coverage is field-adjustable from 90° to 360° with no extra kits. Spin the 360° collet after the pour if the path changed. Use TG-61 when the drawing says “wash the walk” and the budget says MR-16; use TG-60 when that same walk is a driveway, a hotel drop-off, or a Luxor color scene.

When to step up to Terra TN-60 and TG-60

The TN-60 and TG-60 are the premium Terra in-grades FX launched in late 2025: solid brass, integrated LEDs, longer L70 (typically 55,000–72,000 hours), and real lumen packages for architecture. TN-60 3-LED starts around 250–315 lumens depending on faceplate; 9-LED climbs toward 760–920 lumens. TG-60 keeps the wash photometrics but adds Luxor-native boards.

Big Irrigation carries the TG-60 line now:

FX Luminaire TG-60 Terra ground wash light in bronze metallic
Terra TG-60 bronze metallic — the solid-brass, integrated-LED ground wash we stock in 3-LED, ZD 6-LED, and ZDC RGBW.

Pick 60-series when the fixture will live in concrete, take vehicle load (FX rates drive-over at 4,400 lb static on the listed faceplates), or sit on a Luxor job where you do not want a lamp to service in five years. Pick 61-series when the takeoff is residential or HOA common area, the client wants a replaceable lamp, or you need brass lids on some heads and composite on others to hit a number.

Install notes that actually save callbacks

  1. Core or conduit first. 4-inch Schedule 40 or 4-inch SDR-21 thin wall. The T6X collet is already on the fixture. If you core, use a 4-inch bit and let the overhanging flange cover the chip-out.
  2. Pour kit for concrete. CPK-T6X / CPK-TN6X holds the can level and still lets you rotate 360° after the slab is hard. Do not bury a well light in a wet pour without the kit and a drain path.
  3. Water is the failure mode. IP66/IP67 plus IP68 submersion testing is the spec. It is not a license to skip a drain rock bed, a slope away from the lens, or a proper splice. Use heat-shrink or brass-lug connectors on the 10-foot lead — see our landscape lighting wiring guide.
  4. Load the transformer for VA, not “watts on the box.” P4 is 4.3 VA and P5/ZD5 is 5.4 VA per head. Integrated TG-60 3-LED is 4.5 VA; 6-LED ZD is 9.3 VA; ZDC is 11.0 VA. Size the FX PX transformer with cable loss on the 12 V tap. We stock PX-300 and PX-600.
  5. Luxor is optional, not automatic. Standard P4/P5 lamps phase-dim from the transformer. ZD5 lamps and TG-60 ZD/ZDC boards need a Luxor controller. Fixture assignment in the field is faster with the LumaKey utility.

Warranty on the 61-series fixture is a 10-year limited; the lamp is 3 or 5 years depending on the factory option. 60-series fixtures carry the same 10-year fixture warranty with the longer integrated LED life.

TN-61 vs Cora and other FX in-grades

Terra is the midsized “in the pavement” line. If you need a smaller well or a different face style, FX still sells Cora in-grades such as the Cora CG-51 ground wash. Browse the full in-grade and well light category when the drawing mixes well lights, hardscape grazers, and path wash on one transformer.

Frequently Asked Questions

What is the difference between FX Terra TN-61 and TG-61?

TN-61 is a directional in-grade uplight with a 0–15° gimbal for trees, walls, and columns. TG-61 is a ground wash with a four-quadrant faceplate that opens from 90° to 360° for walks and lawns. Same hole size, same MR-16 lamp family, different optic.

Should I buy Terra 61 or Terra 60?

Buy 61 when you want a replaceable MR-16 and a brass-or-composite lid to hit a budget. Buy 60 when you want integrated LEDs, solid brass, longer life, and Luxor ZD/ZDC in a drive-over or commercial hardscape. We have TG-60 3-LED, ZD 6-LED, and ZDC RGBW on the shelf.

Are Terra in-grounds rated for driveways and concrete?

Yes, with the concrete pour kit and the faceplates FX lists for load. The 60-series publishes a 4,400 lb static drive-over rating on the specified lids. Always confirm the faceplate (ring vs grill vs cowling) against the load table before you pour a driveway.

Are TN-61 and TG-61 waterproof?

They are IP66/IP67 rated and IP68 submersion tested. That is serious water protection for an in-grade, not a substitute for drainage, a sealed splice, and a lens that is not sitting in a puddle.

What lamp and voltage do the Terra 61 fixtures use?

MR-16 GU5.3 on 10–15 VAC/VDC from a remote landscape transformer. FX offers 4.3 VA (P4) and 5.4 VA (P5 or ZD5) factory lamps, 2700K or 3000K, flood or wide flood. NL leaves the socket empty for a lamp you already stock.

Do Terra lights work with Luxor?

ZD5 lamps on TN-61/TG-61 and the TG-60 ZD / ZDC boards do. Standard Pro LED lamps are phase-dimmable only. If the job is a full Luxor scene, spec ZD/ZDC from the start instead of retrofitting lamps later.

Spec Terra in-grounds with Big Irrigation

Need TN-61, TG-61, or TN-60 configured by finish, lamp, and faceplate? Send the takeoff through Quote Center and we will price the FX spec string. If the drawing is already a TG-60 wash, order TG603LEDW, TG60ZD6LEDW, or TG60ZDC today.

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