LG Halogen Microwave Light Bulb 6912A40002J 50W 130V OEM replacement — warm white, direct-fit

The LG 6912A40002J is a genuine OEM halogen replacement bulb engineered to restore reliable interior or underside microwave illumination with a 50-watt, 130-volt rating.

If your LG microwave's interior or countertop illumination is dim, flickering, or out entirely, swapping in the factory-designed LG 6912A40002J halogen bulb brings back clear, bright light and a precise fit. This purpose-built OEM component matches LG's original specifications so it installs cleanly and functions predictably in compatible models. Always disconnect power before replacing the bulb and follow your microwave owner’s manual for safe installation.

Which LG microwaves work with the 6912A40002J halogen bulb?

This replacement bulb fits a broad list of LG models including compact and over-the-range microwaves. It was specified by LG to match the light housings used across many model families for a direct swap without modification.

• Compatible models include LMVM2033ST, LMV2031BD/SS/SB/SW/ST, LMVH1711BD/ST and several LSMC, UPMC, LSWC and LWC series units.
• Also cross-references part numbers such as 85064, 85063, 87593, 83543, 83547.
• Check your appliance model number against the compatibility list before ordering to ensure fit.

How bright is this halogen bulb and what are the specifications?

The LG 6912A40002J runs at 50 watts and 130 volts, providing concentrated, warm white halogen illumination ideal for illuminating the microwave interior or the countertop beneath an over-the-range unit. Its compact dimensions make it suitable for the constrained light housings used in many microwave designs.

• Power: 50 W, Voltage: 130 V for consistent output.
• Approximate size: 0.5" wide × 0.5" deep × 1.5" high for direct fitment.
• Halogen filament chemistry yields steady, high-contrast light useful when checking food doneness or reading displays.

Is this an authentic LG OEM part and why does that matter?

This is a genuine LG Original Equipment Manufacturer (OEM) bulb built to the brand’s original specifications. Using OEM parts helps ensure proper fit, reliable operation, and reduces the risk of electrical or mechanical mismatches compared with generic aftermarket bulbs.

• Manufactured to LG tolerances so the bulb seats correctly and connects safely.
• Materials chosen for durability and predictable electrical behavior in LG housings.
• Backed by the assurance that you’re replacing like-for-like rather than adapting a non-standard component.

What should I do before and after installing this halogen bulb?

Prioritize safety: unplug the microwave or switch off circuit power before accessing the lamp housing. After installation, verify the bulb is secure, restore power, and test the light and microwave functions before regular use.

• Disconnect appliance from power or flip the breaker before starting.
• Handle the bulb carefully—avoid touching the glass with bare hands to prevent oils from shortening life.
• Refer to your microwave owner’s manual for removal and reassembly of the lamp cover or bezel.

Who is this for: Homeowners and technicians who need a direct-fit, factory-specified replacement for an LG microwave light. If you own one of the compatible LG models and want a reliable, original-part repair rather than an aftermarket substitute, the 6912A40002J delivers the correct size, electrical rating, and OEM fit to restore proper illumination quickly and safely.