When shopping for smart home electronics, the first decision is whether you need to control a light or manage a door. The Belkin WeMo and Elegrp options are wall switches for lighting projects, while the two Philips Home Access 4200 choices are connected deadbolts. Their listed prices span USD 9.99 to USD 90.99, but they solve very different jobs. Start with the room or entryway you are updating, then narrow the choice by control type, bulb compatibility, condition, and the included lock components.
Quick take
The Elegrp Smart Wi-Fi Dimmer Switch is the direct fit for an LED lighting location that calls for dimming. The Belkin WeMo Wi-Fi Smart Light Switch F7C027 offers app control alongside physical switch control, with a stated neutral-wire requirement. For entry access, both Philips Home Access 4200 models combine Wi-Fi, a fingerprint reader, and a keypad. The main fork between them is condition: one is open box and one is new. The new matte-black Philips also explicitly lists Amazon Alexa and Google Assistant compatibility.
Listed-price comparison
| Listed option | Listed price | Price position |
|---|---|---|
| Elegrp Smart Wi-Fi Dimmer Switch Smart Home Light Switch White/DTR30-NEW | USD 9.99 | |
| Belkin WeMo Wi-Fi Smart Light Switch F7C027 Home Automation White New | USD 27.99 | |
| Philips - Home Access 4200 - Smart Deadbolt Wi-Fi Fingerprint Keypad - OPEN BOX | USD 75.00 | |
| Philips Home Access 4200 Smart Deadbolt Wi-Fi Fingerprint Keypad Matte Black | USD 90.99 |
Decision matrix
- Need a Wi-Fi dimmer for LED lighting: Choose the Elegrp Smart Wi-Fi Dimmer Switch. Its title identifies it as a dimmer, and LED bulb compatibility is specifically listed.
- Want lighting routines from a switch with app control: Choose the Belkin WeMo Wi-Fi Smart Light Switch F7C027. It lists remote access, a timer, illumination, and a dusk-to-dawn cycle.
- Prefer the open-box Philips package with documentation and hardware: Choose the Philips Home Access 4200 OPEN BOX model. It is described as including original documentation, hardware, keys, and the original box.
- Want a new matte-black Philips deadbolt with named voice-assistant compatibility: Choose the Philips Home Access 4200 Matte Black model. Amazon Alexa and Google Assistant are explicitly listed.
Product notes
Belkin WeMo Wi-Fi Smart Light Switch F7C027

The Belkin WeMo is for a light-control setup where app control and a physical wall switch both matter. Its listed remote access, timer, illuminated control, and dusk-to-dawn cycle suit lighting routines that extend beyond simply turning a fixture on or off at the wall. It is also described as working with CFL, incandescent, and LED bulbs, giving it a broader stated bulb range than the LED-specific Elegrp option. The key limitation is the neutral-wire requirement for installation. Choose Belkin when that wiring requirement fits the intended switch location and its scheduling-oriented controls match the lighting task.
Elegrp Smart Wi-Fi Dimmer Switch White/DTR30-NEW

Elegrp is the focused choice for a lighting location where dimming is the priority. This white Wi-Fi switch is described as compatible with Amazon Alexa and is listed for LED bulb compatibility. Its rectangular wall-switch form keeps the emphasis on replacing a conventional lighting control rather than adding a separate smart-home accessory. The listed AC current rating is 4-10 A. Its main constraint is the stated LED compatibility, making it a more narrowly targeted option than a switch described for CFL, incandescent, and LED bulbs. Pick the Elegrp for a dedicated LED dimming project rather than for door access.
Philips Home Access 4200 Smart Deadbolt Wi-Fi Fingerprint Keypad - OPEN BOX

This Philips Home Access 4200 is the open-box route to a Wi-Fi deadbolt with fingerprint and keypad entry methods. The description states that it was opened but never installed, and it includes original documentation, screws and hardware, keys, and the original box. Its attributes also list a drilling template, interior and exterior assemblies, mechanical keys, and an accessories pack. That combination gives it a clear reason to consider it for a lock project centered on the included package. The practical limitation is that it requires AA batteries, which are explicitly not included.
Philips Home Access 4200 Smart Deadbolt Wi-Fi Fingerprint Keypad Matte Black

Choose the new Philips Home Access 4200 Matte Black when the desired project is a smart deadbolt with a matte-black finish and named compatibility with Amazon Alexa and Google Assistant. It lists app compatibility, keypad entry, fingerprint entry, and remote access, while the included components are the exterior assembly, interior assembly, mechanical keys, and accessories pack. This makes it the straightforward new-condition Philips choice in the comparison. Its stated limitation is equally direct: it is a smart deadbolt only, and a door lever is not included. It fits a deadbolt-focused upgrade, not a combined lock-and-lever replacement.
Final recommendation by use case
For LED dimming, select the Elegrp Smart Wi-Fi Dimmer Switch. For a light-control project built around routines and app operation, choose the Belkin WeMo Wi-Fi Smart Light Switch F7C027. For a connected entry deadbolt in open-box condition with documentation and hardware described in the package, choose the Philips Home Access 4200 OPEN BOX model. Choose the new Philips Home Access 4200 Matte Black model when a new matte-black deadbolt and explicit Alexa and Google Assistant compatibility are the priorities.