Illuminated Atomic 18 in Outdoor/Indoor Wall Clock - Lighted Dial
Illuminated Atomic 18 in Outdoor/Indoor Wall Clock - Lighted Dial
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In this review the CLXEAST 18 in illuminated outdoor atomic wall clock is judged on outdoor readiness, automatic time setting and its lighted dial. It is aimed at homeowners who want a large, easy-to-read clock for a patio or entryway that also shows temperature and humidity. The single biggest reason to buy is the automatic WWVB atomic time sync combined with an integrated light sensor that turns on a warm backlight at night, making the dial readable after dark without manual switching.
Key Features
- Atomic time sync: The clock automatically synchronizes to the WWVB radio signal so it sets itself and adjusts for Daylight Saving Time, removing manual clock changes.
- Smart LED light sensor: An integrated sensor turns on a warm ambient backlight in low light and turns it off in daylight, improving night readability.
- Weather resistant construction: IP65-rated sealing with rubberized gaskets protects the clock from moisture and UV exposure for outdoor or covered patio use.
- Thermometer and hygrometer: Built-in sensors report temperature from -40 to 140 degrees F and relative humidity from 1% to 99%, giving quick environmental context at a glance.
- Two backlight modes: Choose Always On or Always Off for the LED backlight to match installation needs and battery life considerations.
- Large 18 in diameter: The sizable dial and clear markings make the clock readable from across a deck or patio for convenient time checks.
Who It's For
The CLXEAST illuminated atomic clock suits homeowners and renters who want a decorative but functional outdoor or indoor wall clock for a porch, patio, pool area or kitchen, and who value automatic time accuracy without frequent manual adjustments. It is particularly useful for those who need a clock that remains legible at night thanks to the built-in backlight.
Those who require continuous exposure to extreme elements or full rain immersion should look elsewhere, since the clock is intended for protected outdoor mounting away from direct, constant exposure to sun, heat or driving rain. Also, buyers who prefer a plug-in backlight rather than battery-powered LEDs may prefer a different model.
Pros & Cons
Pros
- Reliable atomic time feature keeps time accurate and handles Daylight Saving Time automatically.
- Integrated light sensor and warm LED backlight deliver excellent nighttime readability.
- Weather-resistant design and UV-resistant finish make it suitable for covered outdoor use.
- Built-in thermometer and hygrometer add useful environmental information.
Cons
- Battery power for the LED (4 D cells) and clock movement means periodic battery changes and varies with installation environment.
- Some customers reported occasional time-setting disagreements, so placement and signal reception matter for atomic sync.
Specifications
| Diameter | 18 in |
| Timekeeping | Atomic WWVB sync with 4 US time zone selections |
| Backlight | Warm LED with light sensor, 2 modes (Always On/Always Off) |
| Weather rating | IP65 weather-resistant with rubberized gaskets |
| Temperature range | -40 to 140 degrees F |
| Humidity range | 1% to 99% RH |
| Power | 1 x AA for movement, 4 x D for LED (batteries not included) |
Our Verdict
The CLXEAST 18 in illuminated atomic wall clock is a strong choice for anyone who wants a large, attractive clock that sets itself and stays readable after dark. Its combination of atomic accuracy, a smart light sensor and weather-resistant build offers good value for covered outdoor or indoor settings, provided the unit is mounted where the WWVB signal and battery life are not compromised.
Frequently Asked Questions
Does the clock adjust for Daylight Saving Time?
Yes, the atomic WWVB sync handles DST automatically and includes an option to turn the atomic feature on or off.
What power does the backlight use?
The LED backlight uses 4 D size batteries while the clock movement uses a single AA battery; batteries are not included.
Can this be left in the open outdoors?
It is IP65 weather-resistant and UV-treated, but it should be placed away from direct, constant sun, heat and driving rain for long service life.
Editor's Take
The CLXEAST 18 in illuminated atomic wall clock is ideal for covered outdoor and indoor spaces, offering automatic WWVB time sync, a smart night backlight and temperature/humidity readouts for good value.

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