GE 12770 MVR400/VBU/R

Product Overview

GE 12770 MVR400/VBU/R — 400W Chromafit Multi-Vapor Metal Halide Lamp (HPS Retrofit)

The GE MVR400/VBU/R (order code 12770) is a 400-watt Chromafit™ Multi-Vapor® metal halide lamp (HPS-retrofit) with a ED37 bulb and E39 Mogul Screw base, designed as a direct replacement lamp for HID fixtures built around a S51 ANSI ballast circuit.

WATTAGE

400W

Input Wattage

LUMENS

37,600 lm

Mean: 22,600 lm

CCT

4500K

Daylight

BASE TYPE

E39

ED37 Bulb

CRI

65 CRI

Color Rendering Index

Technical Specifications

GE Order Code	12770
GE Model / Description	MVR400/VBU/R
Bulb Shape	ED37
Base Type	E39 Mogul Screw
Burning Position	VBU — Vertical, Base Up
Fixture Enclosure Rating	S — Restricted burning position — verify fixture suitability with GE documentation
Maximum Overall Length (MOL)	11.50"
Light Center Length (LCL)	5.75"
Wattage	400W
ANSI Ballast Type	S51
Case Quantity	6
Rated Life	20,000 hrs
Initial Lumens	37,600 lm
Mean Lumens	22,600 lm
Color Temperature	4500K
CRI	65
Lamp Finish / Additional Info	Clear, HPS Retrofit

Product Overview

The GE MVR400/VBU/R is a 400-watt Chromafit™ Multi-Vapor® metal halide lamp (HPS-retrofit) finished in clear glass, rated at 65 CRI and 4500K color temperature. It ships with a ED37 bulb envelope on a E39 Mogul Screw base and is built to operate on a S51 ANSI-type HPS ballast.

GE Chromafit™ Multi-Vapor® lamps are designed to convert high pressure sodium (HPS) sockets to white metal halide light. Per the GE catalog, they operate on standard HPS ballasts and auxiliary equipment and are intended for area lighting, industrial, and "people places" in enclosed fixtures.

At 20,000 hours rated life and 37,600 initial lumens, this lamp is intended as a like-for-like replacement for GE order code 12770 — confirm the code printed on your existing lamp or fixture ballast label matches before ordering.

Compatible Applications

Fixtures wired for a S51 ANSI-type HPS ballast circuit
E39 Mogul Screw socket fixtures rated for 400W HPS-retrofit lamps
General commercial and industrial area lighting
Parking lot, warehouse, and wall pack fixtures already equipped with a matching ballast
Burning position: VBU (Vertical, Base Up)

Before Ordering – Verify

Confirm your fixture's ballast is rated ANSI type S51 — this HPS-retrofit lamp is for standard HPS ballast circuits; verify the ballast label before ordering.
Not for use on magnetic-regulator or electronic-regulator ballast systems (per GE footnote) — using this lamp on those systems can overheat the ballast.
Confirm base type (E39) and burning position (VBU — Vertical, Base Up) match your fixture — operating a lamp outside its rated position can shorten lamp life.
GE lists a restricted/special fixture designation (“S”) for this lamp — verify fixture enclosure and orientation requirements with GE documentation before ordering.
Confirm order code 12770 (GE MVR400/VBU/R) exactly matches the lamp or ballast label on your existing fixture before purchasing a replacement.
Case pack quantity is 6; confirm this meets your order needs.

Safety and Handling Guidelines

Contains mercury — dispose of in accordance with local, state, and federal regulations; do not place in regular household trash. Use a certified lamp recycler where required.
Always de-energize the fixture and allow the lamp to cool completely before relamping or servicing.
Metal halide lamps carry a small risk of non-passive (violent) failure at end of life or if operated past rated life; use only in a fixture with the enclosure/containment specified by the fixture manufacturer.
After a power interruption, allow the lamp to cool before it will restrike and return to full output — this is normal metal halide behavior, not a defect.

Compliance

Contains mercury; recycle/dispose of per applicable RoHS, EPA, and state lamp-disposal regulations.
Manufactured to GE's published ANSI lamp/ballast standard for the listed ballast type.