Zeifun Touch Lamp Switch 2 Pack, Touch Lamp Control Module for Dimmable LED, Incandescent, Halogen Bulbs, Lamp Switch Replacement Kit, Touch Dimmer Sensor with 3 Levels Brightness and Wiring Caps

A touch dimmer can make a bedside lamp far more usable. After a few weeks with Zeifun’s touch dimmer module installed in a couple of table lamps, I’m convinced this little two-pack is a practical, inexpensive way to modernize older fixtures—provided you match it with the right bulbs and lamp construction.

What it is and what it isn’t

This is a compact, in-line touch control module that replaces a cord or socket switch and adds three-stage dimming: low, medium, high, then off. It supports dimmable LED bulbs up to 15 W and CFL/halogen/incandescent up to 50 W. The touch lead senses your hand on a metal lamp body to toggle brightness. That last bit matters: it only works with lamps that have a metal base or another metal part you can bond the sensor wire to.

It’s not a smart switch, it doesn’t integrate with voice assistants, and it doesn’t provide infinitely variable dimming. It’s a straightforward, tactile upgrade for lamps where reaching a tiny switch is a pain.

Installation and setup

Installation is DIY-friendly if you’re comfortable working with lamp cords. The module is a small black box with four color-coded leads and comes with wire caps. The basic process I followed:

1) Unplug the lamp and open the base.
2) Identify line (hot), neutral, and the two leads going to the bulb socket.
3) Remove the old switch (if present).
4) Wire the module in-line per the diagram: line in, line out to the socket, neutral pass-through, and the separate touch lead to a metal part of the lamp.
5) Secure connections with the supplied caps, tidy the wiring, and reassemble the base.

The size is a non-issue; it tucked neatly into every base I tried. The most time-consuming part was finding a clean, reliable metal contact point for the sensor lead. On one lamp I attached it to an unpainted section inside the base; on another I used a ring terminal under the metal harp saddle. Either way, make sure the metal you’re bonding to is continuous with the part you want to touch.

A practical tip: label the lamp’s original hot and neutral before you start. Many lamp cords are ribbed on the neutral side; keep that continuity. And of course, unplug before working—these are mains connections.

Compatibility and real-world limits

A few constraints define whether this module will be a good fit:

• Metal matters. The touch sensing relies on capacitance through the metal body. Plastic, wood, or fully painted metal without exposed contact points won’t work unless you add a metal touch plate tied to the sensor lead.
• Floating, not grounded. The touch-sense method assumes the lamp’s metal body is not hard-grounded. If your fixture uses a three-prong grounded cord or is hardwired with a ground bond to the body, the sensing can be unreliable or fail altogether. I would not recommend modifying or lifting grounds on any hardwired fixture—use this on typical two-prong table lamps instead.
• Bulb types and wattage. Dimmable LEDs up to 15 W per lamp worked best in my testing. Incandescent and halogen up to 50 W are supported, but they run hotter and can stress compact modules in enclosed bases. For longevity, I’d stick with quality dimmable LEDs that play nicely with triac-style dimmers.

One more compatibility note: this is not for three-way (multi-filament) bulbs or “smart” bulbs. The module needs a dimmable, single-filament LED or a conventional incandescent/halogen load.

Performance and dimming behavior

On a pair of bedside lamps with 8–10 W dimmable LED A19s, switching and dimming were reliable. A quick tap cycles low → medium → high → off, and a long touch is not required. The steps are reasonably spaced: low is gentle enough for a nightstand, medium feels like a comfortable general setting, and high is all the output your bulb delivers.

With LEDs, low level brightness varies by bulb driver design. Some bulbs go quite low; others have a low setting that’s closer to “medium-low.” I didn’t experience flicker with mainstream dimmable bulbs from reputable brands, but a bargain bulb did shimmer on the lowest step. If you see that, swap the bulb rather than blaming the module; LED dimming compatibility is a two-party dance.

Responsiveness was solid overall. If a lamp sat off for an extended time, the first touch occasionally required a slightly longer tap, then it behaved normally. That’s not unusual for capacitance-sensing modules in rooms with variable humidity and grounding conditions, but it’s worth mentioning if you want instant tactile response every time.

With a 40 W incandescent test bulb, the module still behaved, but the base warmed up more, and the module’s casing sat notably warmer after long sessions on high. It stayed within what I’d consider acceptable, yet it reinforced my preference for LEDs here.

There’s no memory after power loss. If you unplug or switch the outlet off, the lamp comes back off when power returns. For many, that’s a plus—no surprise turn-ons after an outage.

Build and design

The enclosure is compact and cleanly molded. Leads are adequately long for most bases, and the included wire caps are a nice touch. The printed diagram is clear. I appreciate the low-profile form factor; it allowed me to upgrade a small metal desk lamp without bulging the base.

This is a two-pack, which is useful if you’re upgrading a pair of lamps or want a spare. Economically, it makes sense, and practically, it reduces the friction of trying this on multiple fixtures until you find the ones that take best to touch control.

Safety and best practices

• Do not use this to modify a hardwired wall sconce or any grounded metal fixture unless the design and code allow touch-sense controls and the metal touch surface is appropriately isolated. Defeating a safety ground is not an acceptable workaround.
• Maintain polarity in the cord. The module should interrupt the hot conductor, not neutral.
• Secure the module in the base so it cannot rattle or stress the wires over time.
• Stay within the wattage limits. If you feel the base getting hot with an incandescent, switch to a lower-wattage lamp or, better, a dimmable LED.

Who benefits most

• Bedside and end-table lamps with metal bases and two-prong cords.
• Spaces where the original inline switch is awkward to reach.
• Users who want simple, tactile control rather than app or voice control.

Who should look elsewhere:

• Anyone wanting full-range dimming, smart features, or memory presets.
• Owners of plastic, wood, or fully grounded metal fixtures that won’t support capacitance touch sensing.
• Users committed to high-wattage incandescent bulbs in enclosed bases.

Minor quirks

• Dimmable LED compatibility varies by bulb. If you see shimmer or a too-bright “low,” try a different bulb brand.
• Initial touch responsiveness can vary after long idle periods depending on the lamp’s environment and grounding.
• The 15 W LED limit means high-output multi-LED fixtures aren’t a match; this is best for standard A19 single-bulb lamps.

Verdict and recommendation

The Zeifun touch dimmer module hits the mark for what it is: a compact, budget-friendly way to add three-stage touch control to compatible table lamps. Installation is straightforward, the brightness steps make sense for bedside and living room use, and with good dimmable LEDs the experience is smooth and quiet. The low-profile form factor and included wire caps make the retrofit painless.

Its limitations are real but not dealbreakers if you go in eyes open: it needs a metal surface to touch, it doesn’t play well with grounded fixtures, and you must respect the wattage caps—especially with incandescent bulbs. If you stick with quality dimmable LEDs at or below 15 W, the module runs cool and behaves predictably.

I recommend it for DIYers who want to modernize metal-base table lamps without replacing fixtures or adding smart-home complexity. It’s an easy win for convenience and comfort, especially on nightstands and desks. If your lamp isn’t a good match—non-metal, grounded, or using high-wattage incandescents—this isn’t the right tool, but for the many two-prong metal lamps out there, it’s a worthwhile upgrade.