Alliance GL370 In-Grade Light Aged Brass (GL370)

Alliance GL370 In-Grade Light — Aged Brass (GL370)

The Alliance GL370 is a professional-grade in-grade lighting fixture designed for uplighting and ground wash illumination. Combining a rugged cast brass lid with a non-corrosive polymer housing, the GL370 delivers long-lasting performance in buried, high-traffic applications. Available in factory-installed 4W, 5W, or 6W LED lamp options or as a blank for field installation. BT Bluetooth RGB module available for color control.

Key Specifications & Features

• SKU: GL370
• Brand: Alliance Outdoor Lighting
• Finish: Aged Brass
• Lid Exposed Diameter: 4.87"
• Buried Fixture Depth: 4.75"
• Lid Thickness / Height: 1"
• Housing: Non-corrosive polymer
• Lid: Cast brass with 5 color-matched stainless steel screws
• Socket: Spring-loaded ceramic bi-pin MR16, dual contacts, lamp clips
• Lead Wire: 60" 16 AWG wire lead
• Lamp Options: 4W / 5W / 6W LED (15°, 45°, 60° beam) or field install; BT RGB module available
• Color Temperature: 2900K (factory LED options)
• Certifications: Dark Sky compliant options available

Frequently Asked Questions

What is the difference between GL360 and GL370?
The GL360 has a grate-protected convex lens optimized for uplighting. The GL370 is a ground wash fixture illuminating opposing sides. Both share the same 4.87" lid diameter, brass lid, and polymer housing.

What lamps are compatible with the Alliance GL370?
The GL370 uses a spring-loaded ceramic bi-pin MR16 socket and accepts Alliance's full range of MR-16 LED lamps. Factory-installed options range from 4W (250 lm) to 6W (400 lm) at 2900K in 15°, 45°, or 60° beam angles.

Can I add Bluetooth color control to the GL370?
Yes. The Alliance BT System RGB module can be factory-installed, providing RGBW color mixing, 2700K–4000K tunable white, and dimming via the Alliance BT app — no additional wiring or hub required.

How deep does the GL370 need to be buried?
The buried fixture depth is 4.75". The cast brass lid sits flush with ground level at 1" thickness. Use the included collar and ensure proper drainage to prevent water intrusion.