Gavita 1-5/8 in Mounting Bracket Assembly Kit

The Gavita 1-5/8 in Mounting Bracket Assembly Kit (SKU: MC2092) is the OEM hanging hardware kit used to suspend a single Gavita grow-light fixture from a 1-5/8 inch unistrut channel or Gavita rail system overhead. Each kit contains a matched long bracket, short bracket, and the metric M6 bolts and nuts needed to clamp the fixture to the strut. It is the bracket size that ships with the Gavita CT 2000e LED and other Gavita Pro line fixtures specified for 1-5/8" track.

Gavita 1-5/8 in Mounting Bracket Kit Specifications

This kit is a small package of hanging hardware, not a fixture component. The table below lists the confirmed specifications from Gavita and the canonical supplier listing. Load ratings and exact bracket dimensions beyond the 1-5/8 inch channel designation are not published by Gavita for this part.

Specification	Value
SKU	MC2092
Channel size	1-5/8 inch unistrut
Kit contents (single unit)	1 long bracket, 1 short bracket, 2 M6 bolts, 2 M6 nuts
Fastener standard	Metric M6
Brand	Gavita
Primary use	Hang Gavita fixture from unistrut channel or Gavita rail system
Weight (per kit)	1.0009 lb
Sold as	Single kit (one fixture mounting point set)
Load rating	Not published by Gavita

What a Single Kit Mounts

One kit is the hardware for one fixture-to-strut attachment. Most Gavita Pro and CT line fixtures use two hanging points per fixture (one near each end of the housing), so a typical installation uses two kits per fixture. Verify the hanging hardware count for your specific fixture against its installation manual before ordering quantity. For larger commercial rooms running many fixtures from the same overhead strut grid, suppliers also offer this kit in a case pack of 12 as a separate SKU.

Why 1-5/8 Inch Channel Specifically

The 1-5/8 inch designation refers to the nominal face width of standard unistrut channel, the most common size used in commercial electrical and mechanical installations across North America. Gavita designed the bracket geometry to clamp directly to this channel profile without spacers or adapters. If your facility was built using 2 inch unistrut instead (which exists but is less common in grow-room overhead grids), Gavita sells a separate 2 inch bracket kit with the same component layout. Confirm the unistrut size already installed before ordering; the brackets are not interchangeable between channel sizes.

Why Choose the Gavita 1-5/8 in Mounting Bracket Kit

• OEM-matched to Gavita fixture housings. The bracket geometry, bolt pattern, and M6 fastener spec match the mounting points that Gavita engineers into their fixture chassis. There is no need to drill, file, or adapt anything. Using OEM hardware also avoids the load-distribution issues that arise when third-party clamps grip the housing at points not designed to carry weight.
• Designed for the most common unistrut size. Standard 1-5/8 inch unistrut channel is the default specification for overhead grids in commercial grow rooms and most light industrial spaces. If your facility was designed by an electrician or mechanical contractor using off-the-shelf strut, this is the size already installed in the ceiling.
• Complete in one purchase. The kit ships with the long bracket, short bracket, and both M6 bolts and nuts. There is no second trip to a hardware store and no risk of mismatched metric and imperial fasteners. Each kit is a complete set for one mounting point.
• Standard metric M6 hardware. Replacement bolts and nuts, if ever lost or damaged, are available from any industrial fastener supplier. The M6 standard is universally stocked, so the kit is not tied to a proprietary fastener that becomes hard to source later.
• Same kit Gavita ships with CT 2000e LED. The 1-5/8 inch bracket kit is the hardware Gavita includes in the CT 2000e LED box. Buying the same kit separately to mount additional fixtures keeps the installation visually and mechanically consistent across the room.
• Compact, low-cost, easy to stock. At a single-unit price point this kit is cheap enough to keep a few spares in the facility tool cabinet. Brackets can bend if a fixture is dropped during install or maintenance; having a spare kit on the shelf prevents downtime.

If you are mounting a current-generation Gavita LED fixture from scratch and have not yet purchased the lighting, the Gavita Pro 1700e LED is a popular complete fixture from the same brand family that uses standard hanging hardware compatible with overhead strut grids and ratchet hangers.

Best Uses for the 1-5/8 in Mounting Bracket Kit

• Hanging Gavita CT 2000e LED fixtures from overhead strut. This is the bracket size the CT 2000e is engineered for. Use one kit per mounting point (typically two per fixture, four per fixture in some rail configurations).
• Replacing brackets on existing Gavita installations. If brackets have been bent, lost, or corroded in an older Gavita Pro or CT installation, this kit is the direct OEM replacement for any fixture that originally shipped with 1-5/8 inch hardware.
• Building out additional fixture rows in a commercial grow. When expanding a flowering or vegetative room with more Gavita fixtures on the same 1-5/8 inch strut grid, ordering bracket kits in matched quantity with the new fixtures ensures consistent mounting hardware throughout the room.
• Spare hardware for maintenance kits. Facility maintenance teams typically stock a few spare bracket kits in the tool cabinet alongside spare lamps, drivers, and ratchet hangers. The bracket is small, inexpensive, and prevents fixture downtime if a bolt strips or a bracket bends during a re-aim or fixture swap.
• Multi-tier vertical farms with strut-mounted lighting. Vertical grow operations often build each tier from independent strut spans. The 1-5/8 inch bracket kit works at any tier, including dense racks where fixtures hang only a short distance below the strut.
• Smaller hobby and personal grow rooms using unistrut overhead. If your tent or grow room was built around an unistrut overhead grid for fixture flexibility, the bracket kit lets you anchor a single Gavita fixture to the grid without adding a ratchet hanger to the assembly. For tent-based growers without overhead strut, ratchet-style hangers attached to tent crossbars remain a simpler option than installing strut.

The kit is not the right choice for facilities using 2 inch unistrut (use the separate 2 inch bracket kit instead) or for the Gavita RS 2400e rail platform, which uses a different, heavier-duty rail-system hanging bracket sold as a separate part.

Gavita 1-5/8 in Bracket Kit vs Other Gavita Mounting Options

Gavita produces several hanging-hardware options across its fixture lineup, each matched to a specific fixture family and overhead infrastructure. Picking the right one comes down to which Gavita fixture you are mounting and what your overhead grid looks like.

vs Gavita 2 in Mounting Bracket Assembly Kit: The 2 inch variant is identical in component layout (long bracket, short bracket, two M6 bolts, two M6 nuts) but is sized for 2 inch unistrut channel instead of 1-5/8 inch. The brackets are not interchangeable. The right kit for your install is determined entirely by which unistrut size is already in your ceiling. Most North American grow rooms use 1-5/8 inch; check your existing strut before ordering.

vs Gavita LED Rail System Hanging Bracket (HGC906743): The rail system bracket is a heavier-duty single bracket designed specifically for the Gavita RS 2400e rail platform. It attaches at the innermost mounting points of the 8-rail RS 2400e fixture array and supports the higher weight and span of that commercial product. It is priced significantly higher (around $36 at retail vs about $10 for the 1-5/8 inch kit) because it carries a much larger fixture load. If your fixture is the RS 2400e, use the rail system bracket; if it is a CT 2000e or other single-fixture Gavita product specified for 1-5/8 inch strut, use this kit.

vs ratchet-style rope hangers: Ratchet hangers (light hangers with a rope-locking mechanism) are a different category entirely. They suspend a fixture from any overhead anchor point (strut, beam, eye bolt, tent crossbar) by way of a rope rather than clamping directly to strut. Ratchet hangers offer height adjustability, which the bracket kit does not. The bracket kit is a fixed clamp; height changes require moving the strut or relocating the bracket position along the strut. In a finished commercial install where the strut is at the planned ceiling height and fixtures sit at the intended canopy distance, the bracket kit is cleaner and lower-profile than ratchet hangers. In a tent or developmental room where height changes frequently, ratchet hangers are more practical.

vs newer Gavita fixtures with hanging hardware included: Some current-generation Gavita LED products, including the RS 2400e, ship with new and improved hanging hardware included in the box. For those fixtures the buyer does not need to purchase brackets separately. The 1-5/8 inch bracket kit is purchased separately when (a) hanging a fixture like the CT 2000e where additional brackets are needed beyond what ships, (b) replacing damaged or missing brackets, or (c) expanding an installation where additional fixtures of the same model are being added.

Compatibility & Overhead Grid Requirements

The bracket kit is a mechanical clamp. It has no electrical components, no voltage rating, and no compatibility considerations related to ballasts, drivers, or controllers. Compatibility is governed by two factors: the fixture being hung and the overhead strut size.

Compatible Gavita Fixtures

This kit is designed for Gavita fixtures that specify 1-5/8 inch unistrut hardware in their installation documentation. Confirmed compatible fixtures include:

• Gavita CT 2000e LED (ships with this bracket as the standard mounting hardware)
• Gavita Pro line fixtures specified for 1-5/8 inch unistrut
• Other Gavita fixtures whose installation manuals call out 1-5/8 inch hanging hardware

Verify your specific fixture model against its installation manual. Some Gavita rail-platform fixtures (notably the RS 2400e) use a different bracket and are not compatible with this kit.

Compatible Overhead Strut

Use this kit with standard 1-5/8 inch unistrut channel. The bracket clamps onto the channel face and is held by the M6 bolt and nut tightening down on the strut profile. Common strut brands that meet this specification include Unistrut (the original brand and source of the generic name), B-Line, Eaton, Caddy, and equivalent off-brand strut sold by industrial supply houses. Any 1-5/8 inch standard-profile channel from a reputable manufacturer will work.

The kit is not compatible with 2 inch unistrut, slotted angle iron, T-bar drop ceiling grid, or wooden joists. For 2 inch unistrut use the dedicated 2 inch bracket kit. For other overhead substrates, a ratchet hanger or eye-bolt hanger is the appropriate solution.

Electrical and Cord Routing

The bracket is purely mechanical, but in practice it is installed alongside the fixture power cord and any low-voltage controller cables that run to the fixture. Route the fixture cord along the strut and secure it with cable ties or strut clamps so the cord weight is not transferred to the fixture electrical entry. If you have not yet sorted out fixture power cords for your install, the Faven Chroma 120V power cords are a common option for plugging in Gavita fixtures that ship without a power cord attached.

Usage Guidelines and Quantity Planning

Getting the install right is mostly a matter of ordering the correct quantity of kits and verifying the strut and fixture combination before any hardware goes up.

How Many Kits Per Fixture

Single-fixture Gavita products typically use two hanging points (one near each end of the fixture housing), so plan on two kits per fixture as a baseline. Larger rail-mounted fixtures may use more points; consult the installation manual for the exact fixture model. For a room with 20 fixtures and two mounting points each, that is 40 kits, which is more cost-effective to order as the case pack of 12 (sold separately) plus a few single kits to reach the exact count, rather than as 40 individual kits.

Strut Layout and Fixture Spacing

The bracket position along the strut is adjustable in small increments by sliding the bracket before tightening the M6 bolt. This lets you fine-tune fixture position to match your light plan. However, the bracket cannot relocate to a different strut span; if the strut grid in your ceiling does not run perpendicular to your intended fixture orientation, the bracket cannot compensate. Plan strut runs to match the intended fixture orientation before ordering hardware.

Hardware Inspection and Tightening

Before final tightening, verify that the M6 bolt threads are clean and engage freely with the nut. If a bolt feels gritty or cross-threaded, replace it from a stock of spare M6 hardware rather than forcing it. Stripped fasteners under a hanging fixture are a safety hazard. Tighten the M6 bolts to a snug, secure fit; the brackets are designed to clamp firmly without requiring torque wrench levels of force, but the assembly should not move or rock under normal vibration once tightened.

Periodic Inspection

In an active commercial grow room, fixture brackets are subject to thermal cycling (lights on, lights off) and the occasional bump during canopy maintenance, plant rotation, or trellis adjustment. Inspect bracket-to-strut connections at every fixture maintenance interval (typically when changing lamps in HID systems or annually for LED systems). Look for loose bolts, bent bracket arms, or any sign that the fixture has shifted in the bracket. Re-tighten or replace as needed. A spare kit on the shelf turns a bracket failure into a five-minute fix rather than an order-and-wait outage.

Light Plan and Whole-Room Considerations

The bracket kit determines where the fixture clamps to the strut, but it does not determine fixture height above the canopy. That distance is set by where the strut itself is mounted in the ceiling. If your light plan calls for height changes during the crop cycle (for example, raising fixtures during early flower and lowering them during late flower), the bracket kit is not the right mounting solution; use a ratchet hanger instead. The bracket kit is for installations where the fixture sits at a fixed height for the life of the install. If you are building out a complete grow space from scratch, the Advance Grow Tent System 4×4 is one example of a smaller-scale complete kit that includes its own hanging hardware appropriate to a tent environment rather than a unistrut-equipped commercial room.

How to Install the Gavita 1-5/8 in Mounting Bracket Kit

Installation is straightforward and requires only basic hand tools (a wrench or socket for the M6 nut). The fixture being mounted should be powered down throughout the install. The steps below cover a typical install of one fixture using two kits.

1. Verify the strut and bracket match. Before opening any packaging, confirm that the strut already installed in the ceiling is 1-5/8 inch unistrut. If you ordered the wrong size, the brackets will not clamp correctly. Also confirm that the fixture model you are mounting specifies 1-5/8 inch hardware in its installation manual.
2. Identify the long and short brackets. Each kit contains one of each. The long bracket sits on top of the strut and provides the upper clamping surface. The short bracket sits beneath the strut and clamps upward to meet the long bracket. The fixture-mounting holes on the long bracket align with the mounting points on the Gavita fixture housing.
3. Position the long bracket on the strut. Place the long bracket flat across the top of the unistrut channel at the location where the fixture mounting point will hang. Leave the bracket loose at this stage; final positioning happens after both kits are in place on the fixture.
4. Pass the M6 bolts through the bracket holes. Insert one M6 bolt through each of the two bracket holes from the top, with the bolt head sitting on the long bracket and the threaded shank extending down past the strut.
5. Install the short bracket and nuts. From beneath the strut, slide the short bracket up so the bolt shanks pass through its matching holes. Thread an M6 nut onto each bolt and tighten by hand until the long bracket, strut, and short bracket are sandwiched together. The bracket assembly should now grip the strut firmly but still allow sliding along the strut length for position adjustment.
6. Repeat for the second mounting point. Install the second kit at the other end of the strut span where the fixture will hang. Both brackets must be in place before the fixture itself is lifted into position.
7. Lift the fixture and attach to the brackets. With a second person assisting, lift the Gavita fixture and align its mounting points with the holes on the two long brackets. Secure the fixture to the brackets using the hardware specified in the fixture installation manual (some fixtures use the same M6 hardware; others use a separate bolt to attach housing to bracket). Follow the fixture-specific instructions for this attachment.
8. Fine-tune fixture position and tighten. Slide the bracket assemblies along the strut to set the exact fixture position in the room. Once the fixture is at its planned location, tighten the M6 nuts firmly with a wrench. The brackets should not move or rock under hand pressure once fully tightened.
9. Route and secure the power cord. Plug in the fixture power cord and route it along the strut, securing it with cable ties or strut clamps so the cord weight is not pulling on the fixture electrical entry. Avoid sharp bends or pinch points where the cord crosses other hardware.
10. Test and inspect. Restore power and verify the fixture operates normally. Walk around the fixture and confirm visually that both bracket assemblies are sitting flat, fully engaged with the strut, and not deflecting under the fixture weight. Re-tighten if anything looks off.

If the install is part of a new grow-space buildout and you are also sourcing supplemental lighting, the T5 Designer 4ft 4-Tube Fixture is a common companion for clone, mother, and early-veg rooms where DE HPS or commercial LED fixtures are overkill.

Sources & Further Reading