12V DC E27 4W DIMMABLE LED LIGHT BULB

Name: 12V DC E27 4W DIMMABLE LED LIGHT BULB
Brand: LED MONTREAL
SKU: 4WE2712V
Price: 9.97 CAD
Availability: InStock

SKU: 4WE2712V

Brand: LED MONTREAL

Ready to ditch those power-hungry 12V incandescent bulbs? The 12V DC E27 4W Dimmable LED Light Bulb from LED Montreal is the simple, long-lasting swap people search for as a 12 volt LED bulb, a low voltage screw-in bulb or simply a dimmable LED bulb for off-grid circuits. It screws into any standard E27 socket you already have, so there is nothing to rewire and nothing to modify — you take out the old bulb, you put in the new one, and your 12V DC system finally stops draining the battery bank. It is made for RVs, boats, trailers, cabins, cottages, workshops and any circuit fed by solar panels or a wind turbine, and it works beautifully as a replacement for a 40W incandescent bulb.

This little bulb punches well above its size. It draws only 4W on 12V DC, with a compact body measuring 50 mm in diameter and 60 mm in length, so it fits table lamps, sconces, reading lights and tight ceiling fixtures without sticking out. Its 60 degree beam angle gives a focused, directional pool of light — great where you want light aimed at a counter, a berth or a reading corner rather than spilled everywhere. It is dimmable, so you can drop the output for a quiet evening, and it comes in both warm white and cool white so you can match the mood of the room. If you need something brighter with a wider spread, the 12V 7W LED bulb is the step up; this 4W version is the smaller, more discreet choice. One important warning: never connect this 12V LED bulb to a 110V circuit.

Where does it shine? In the galley of a sailboat, over the dinette of a motorhome, in a hunting camp running on a battery bank, in a solar-powered garden shed, or in a Québec cottage that spends the winter off the grid. Canadian cold snaps and long shoulder seasons are hard on batteries, so every watt you save on lighting is a watt left for the fridge, the pump or the radio. Contractors installing low-voltage circuits and cottage owners upgrading old 12V fixtures both get the same win: less heat, less draw, far longer life than incandescent. Check your socket size (E27) and your voltage (12V DC), then add SKU 4WE2712V to your project and enjoy light that lasts.

Built for low-voltage systems
The 12V DC E27 4W Dimmable LED Light Bulb is designed for one job: replacing inefficient bulbs on circuits that run on 12 volts direct current. Its compact housing measures 50 mm in diameter by 60 mm long, which keeps it close to the size of the small incandescent lamps it replaces, so shades, globes and enclosed-look fixtures still sit properly. The familiar E27 screw base means no adapters, no new sockets and no rewiring — it threads into the medium screw sockets already installed in most RV lamps, boat fixtures, cabin sconces and portable work lights.

Light quality and dimming
With a 60 degree beam angle, this bulb delivers a controlled, directional beam rather than a broad wash. That focus is an advantage over a galley counter, a nav table, a bedside shelf or a workbench, where you want the light on the task and not in your eyes. It is offered in warm white for a cozy, relaxed feel and in cool white for a crisp, alert light in work areas — and because it is dimmable, you can bring the level down for evenings, naps or night watches without swapping fixtures. If your space needs more output and a wider spread of light, the 12V 7W LED bulb is the brighter alternative; the 4W stays the discreet, lower-draw option.

Technical specifications
SKU: 4WE2712V
Brand: LED Montreal
Wattage: 4W
Voltage: 12V DC
Base: E27 screw
Diameter: 50 mm
Length: 60 mm
Beam angle: 60 degrees
Dimmable: yes
Colour temperature options: warm white and cool white
Replaces: a 40W incandescent bulb

Installation and safety
Installation is as easy as it gets: cut the power at the switch or breaker, unscrew the old bulb, screw in the LED, restore power. Confirm before anything else that your fixture is truly fed in 12V DC — from a battery bank, a solar charge controller, a wind turbine, a converter or a vehicle system. Never connect this 12V LED bulb to a 110V circuit; doing so will destroy it instantly. On a dimmed circuit, test the bulb with your dimmer before installing several units, since low-voltage DC dimming behaviour varies from one controller to another. Because LEDs run far cooler than incandescent lamps, you also reduce heat build-up inside small enclosed shades and plastic RV fixtures.

Where it works best
Think travel trailers, camper vans, fifth wheels, sailboats, fishing boats, ice-fishing cabins, yurts, tiny homes, garden sheds and remote hunting camps — anywhere the lighting runs off batteries. Cottage owners across Québec and the rest of Canada use these bulbs to stretch a solar setup through cloudy fall weekends, while contractors installing off-grid lighting appreciate having a standard-socket answer that clients can replace themselves years later. Small businesses with low-voltage display lighting, food trucks and mobile workshops benefit the same way. If you are still choosing between shades of white, our warm white, natural white and cool white guide explains how each one changes the feel of a room, and any documents published for this bulb are gathered in the Documentation tab of this page.