Where the power comes from is the whole question · review
The cheapest touchless faucet here, and the one that publishes how it senses: 15 cm range, a 60 to 90 second run, a 300,000-cycle solenoid, and plug or battery power.
Two figures most touchless listings omit are here. 15 cm, about six inches, is how close a hand must come. 60 to 90 seconds is how long the water runs on one trigger. Together they say how the faucet behaves at the sink, which is what you are buying a sensor faucet for.
With an outlet in the vanity, run it on 110 V and forget batteries. Without one, four AA cells power it — though how long they last is not stated, where the Charmingwater here gives six to eight months.
Zinc alloy, the cheaper body metal, against brass on the Yodel and Charmingwater. No flow rate and no UPC. And a model number on the page that is a random identifier, which will not help when ordering a spare part.
The maker’s own warning is worth taking literally: fit the sealing rings at each connection.
Available at around $45.99 on Amazon.com when we checked on October 29, 2026, for delivery to a US address.
Stock and prices on Amazon.com move without notice; the button above opens the live listing.
Prices quoted in this text were read on October 29, 2026. The live price is at the top of the page.
| Power source | 110 V AC plug or 4 AA batteries, not included — stated |
|---|---|
| Stated battery life | Not stated |
| Sensing range | 15 cm (5.9 in) — stated |
| Run-on time | Water stated to run for 60 to 90 seconds after the sensor is activated |
| Temperature adjustment | Temperature mixer supplied, set under the sink — stated |
| Faucet hole diameter | Not stated as a diameter; single-hole mounting, deck plate included |
| Solenoid valve | Stated good for more than 300,000 cycles |
| Body material | Zinc alloy, chrome plated — stated |
| Amazon reference | B0CNCRLTH6 |
The listing says the water lasts 60 to 90 seconds after the sensor triggers. Read that as the longest the faucet runs on one activation, which stops it running indefinitely if something sits in front of the sensor. It is also why washing a face can need a second wave of the hand.
It is the cheaper body metal. Zinc alloy plates well and holds its shape, but it corrodes faster than brass where water sits against it and does not take a repair the way brass does. At this price it is the expected material; the Yodel and Charmingwater on this shelf state brass.
Yes, on four AA batteries, which are not included. The listing gives no battery life; the Charmingwater on this shelf states six to eight months on the same four cells.
Same category, nearby prices, between bathroom fittings. What remains is the specifications every one publishes — half empty, a column is no use.
| Model | Price | Power source | Stated battery life | Sensing range | Run-on time |
|---|---|---|---|---|---|
| Greenspring touchless sensor faucet, chrome | $46 | 110 V AC plug or 4 AA batteries, not included — stated | Not stated | 15 cm (5.9 in) — stated | Water stated to run for 60 to 90 seconds after the sensor is activated |
| Yodel Faucet YDTF-1 touchless faucet | $70 | 110 V AC or 4 AA batteries — stated | Not stated | Not stated | Not stated; water stops when the hands move away |
| Charmingwater touchless bathroom faucet | $120 | 4 AA batteries in a control box, not included — stated; no mains option | 6 to 8 months per set of batteries — stated | Not stated; the sensor sits at the bottom of the faucet body | Not stated; water stops when the hands are removed |
This model is listed on Amazon.com, at ≈ $46 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on October 29, 2026.
A powder room or utility sink on a budget, with an outlet in the vanity
Specifications: the manufacturer sheet for bathroom fittings and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Single hole, deck plate included · 4 AA batteries, 6–8 months stated · under-sink mixing valve · 1.2 gpm · stainless steel and brass · chrome
A battery-powered touchless bathroom faucet that states its battery life — six to eight months on four AA cells — with an under-sink mixing valve and 1.2 gpm.
Best for: A home bathroom with no outlet under the sink, where a stated battery life matters
≈ $120
1 or 3 holes, deck plate included · 110 V AC or 4 AA batteries · mixing valve and hot and cold hoses · brass · 3.5 in spout · chrome
A brass touchless faucet for 1 or 3 holes that runs on 110 V or four AA batteries, with a mixing valve and both supply hoses in the box.
Best for: A 3-hole bathroom sink being converted to touchless, with or without an outlet
≈ $70
8 settings incl. 2-mode power wash · anti-clog nozzles · 72 in stainless hose · overhead and low wall brackets · 1.8 gpm · ABS · chrome
A handheld shower with eight settings, two of them a fan-shaped power wash for tub and tile, a 72-inch hose and a second low bracket — 1.8 gpm, in chrome ABS.
Best for: A shared bathroom where the shower also cleans the tub, rinses a dog or serves someone seated
≈ $30
