LED520BT56/740/208-277 93320138 — GE 520W LED HID Replacement Lamp

GE LED520BT56/740/208-277 93320138 — 520W LED HID Replacement Lamp, BT56, 4000K, EX39 Mogul, Ballast Bypass Type B

The GE LED520BT56/740/208-277 (Order Code 93320138) is a 520-watt LED HID replacement lamp from GE/Current Lighting Solutions, designed as a Type B ballast-bypass retrofit for 1000W HPS or 1500W metal halide fixtures. This BT56 corn-cob style lamp matches the ANSI length and diameter of the HID lamp it replaces, with omnidirectional light output for compatibility with existing fixture optics. With an EX39 mogul base, 4000K neutral white color temperature, CRI greater than 70, 106,000 initial lumens, 204 LPW efficacy, and a rated life of 50,000 hours, this lamp delivers 3.3x longer life than metal halide while using 60–75% less energy. cULus certified, Damp location rated, suitable for open or enclosed fixtures. The existing fixture must be rewired to bypass the ballast. Sold 3 per carton. Verify ballast bypass wiring and voltage range before ordering.

Technical Specifications

Product Overview

The GE LED520BT56/740/208-277 is a Type B ballast-bypass LED lamp engineered to directly replace a 1000W HPS or 1500W metal halide HID lamp, requiring the existing fixture to be rewired to bypass the ballast entirely. This eliminates the ongoing cost and hassle of ballast replacement and maintenance, while delivering 3.3 times longer service life than metal halide (50,000 vs. 15,000 hours) and using 60–75% less energy for similar light output. The BT56 bulb shape and EX39 mogul base match the ANSI length and diameter of the traditional 1500W HID lamp it replaces, allowing it to fit existing fixture housings without modification beyond the ballast bypass wiring.

GE's proprietary active cooling design enables this lamp's compact, high-output construction, with omnidirectional light distribution similar to traditional HID lamps — this allows the LED replacement to work effectively with existing fixture reflector optics designed around an HID lamp's light pattern. As the highest-output lamp in the BT56 family, the LED520BT56 shares the 12.8" overall length and 5.6" diameter of the 470W BT56 variant. An in-line misapplication fuse kit is included, and a tether kit and horizontal support kit are included with this BT56 shape for safety and code compliance in overhead or horizontally-mounted applications. Dimming is supported only through external Variac control devices — standard phase-cut (Triac) dimmers are explicitly not compatible and should not be used with this lamp.

Compatible Applications

• HID retrofit projects — Direct ballast-bypass replacement for 1000W HPS or 1500W metal halide fixtures using existing fixture housings.
• High-bay, area, site, and large canopy fixtures — Where ballast bypass wiring is permitted and fixture is rated for the application.
• Commercial and industrial facilities — Seeking substantial energy savings and reduced maintenance versus legacy high-wattage HID lighting.

Before Ordering — Verify

• Ballast Bypass Required: The existing fixture must be rewired to bypass the ballast entirely — this is a Type B lamp, not a plug-and-play ballast-compatible retrofit.
• Input Voltage: Confirm your circuit falls within 208–277V.
• Existing HID Wattage: Confirm you are replacing a 1000W HPS or 1500W metal halide lamp.
• Dimming: Do not use with phase-cut (Triac) dimmers. Dimming is supported only via external Variac control devices.
• Physical Fit: Confirm 12.8" MOL and 5.6" diameter fit within your fixture housing, with a minimum compartment volume of 1,813 in³ (approximately 11" x 11" x 15").
• Fixture Type: Suitable for open or enclosed fixtures, but not suitable for air-tight, explosive, or hazardous location fixtures. A separate hazardous-location product line is available if needed (see GE Spec Sheet LEDL089).
• DLC Status: Verify current DLC QPL qualification at designlights.org/search if required for a utility rebate program.
• Carton Quantity: Minimum order quantity is 3 units (1 carton).

Safety and Installation Guidelines

• Disconnect power before installing or servicing.
• Qualified Electrician Required: Ballast bypass wiring should be performed by a qualified electrician familiar with rewiring HID fixtures for Type B LED lamp operation.
• In-Line Fuse: Install the included in-line misapplication fuse kit per manufacturer instructions to protect against incorrect wiring.
• Tether and Horizontal Support Kits: Install the included tether kit and horizontal support kit for this BT56 lamp shape, particularly important in overhead or horizontally-mounted applications.
• Dimmer Compatibility: Do not connect to phase-cut dimmers. Use only with external Variac control devices if dimming is required.
• Damp Location Use: Confirm fixture rating matches installation environment; not rated for hazardous or air-tight explosive locations.

Compliance

• cULus listed. DLC ID S-8J5CHR — verify current qualification at qpl.designlights.org/solid-state-lighting.
• RoHS compliant — contains no lead or mercury. No mercury-related shipping restrictions apply.
• Covered by U.S. Patents 10788163 and 10508776 (and potentially other pending applications).
• 5-year limited warranty.

Ordering Information

• Brand: GE / Current Lighting Solutions
• GE Order Code / SKU: 93320138
• Manufacturer Part Number: LED520BT56/740/208-277
• UPC: 662049526349
• Wattage / CCT: 520W / 4000K
• Base: EX39 Mogul (BT56)
• Replaces: 1000W HPS / 1500W Metal Halide
• Packaging: 3 per carton.
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.