La Crosse 616A-56647V2 Review: Travel Projection Has Two Power Modes

Quick Verdict

Will the Clock Have USB-C Power Where You Actually Sleep?

The answer changes what the 616A-56647V2 is. With two AAA batteries alone, it is a compact travel alarm whose display, backlight, and projection can be checked for ten seconds by pressing SNOOZE/LIGHT. With the included USB-C cable connected to a suitable USB source, it becomes a continuously illuminated projection clock with adjustable backlight and a usable charging output.

That split is not a minor footnote. Product photographs naturally emphasize a glowing display and red projection, while “battery power” can suggest the same scene without a cable. La Crosse’s current setup guide is explicit: constant backlight and constant projection require the included USB-C power cable. Battery mode preserves portability by turning those loads into brief requested views.

The folding cover is the genuinely travel-specific idea. Closed, it protects the LCD and controls. Open, it becomes the stand. Button functions are printed inside the cover, reducing the need to find instructions in a hotel room. The clock measures about 4.56 inches long and less than an inch thick when closed, so it packs more like a small case than a conventional projection clock.

The alarm is a 73 dB beeper that increases in frequency and stops automatically after two minutes if it is not silenced. Snooze is ten minutes. This is a conventional travel alarm level, not a specialist heavy-sleeper system. Projection improves time access; it does not make the wake signal stronger.

The 1 A USB-C output is a convenience port, not a reason to replace a modern phone charger. It works only while the clock itself is connected to USB-C power. La Crosse says the clock was not designed to charge tablets or other devices requiring more than 1 A. A traveler who needs fast charging should keep the normal charger and treat the clock’s output as optional.

USB-C and Battery Modes

Two AAA Batteries Are Required, While USB-C Unlocks the Full Display

La Crosse’s product page lists two AAA batteries as required and not included. The setup guide begins by installing them before the cover is opened. The included USB-C cable is described as optional power for constant adjustable backlight and projection, even though it is required for those full display functions.

On battery power, pressing SNOOZE/LIGHT activates both the backlight and projected image for ten seconds. This protects the published battery life of more than six months without AC. The figure is a manufacturer claim, not an observed result in this review. Battery brand, age, alarm use, temperature, and repeated illumination will affect actual life.

On USB-C power, the SNOOZE/LIGHT button cycles the backlight through high, low, and off. Projection can remain constant. The manual says the clock can work with USB power bricks up to 5 A; the clock draws what it needs. The cable can also connect to a computer USB port. A wall power adapter is not clearly listed as included, so verify what USB source will be available at the destination.

The two power paths create useful resilience. If hotel USB power is lost, installed AAA batteries can keep the clock function available. Do not assume the same bright display and projection remain on during the outage. The manual’s battery-mode behavior still applies: press for a ten-second view.

A good travel routine uses fresh matched batteries and the USB-C cable. The batteries avoid waking to a reset clock after a loose cable or switched hotel outlet. The cable provides the expected projection experience. Neither path should be omitted simply because the other exists.

Projection Geometry

Auto Focus Removes One Adjustment, but the Room Still Controls the Result

The red projected digits can be aimed at a wall or ceiling. The projection arm tilts forward and backward, while pressing the UP button rotates the image in 90-degree increments. La Crosse describes the projector as auto focus. That avoids a small manual focus wheel, but it does not remove the need to find a clear surface, comfortable angle, and useful reading direction.

Position the open clock where the arm can point without being blocked by a headboard, lamp, shelf, or raised edge of the nightstand. From the pillow, identify a ceiling or wall area that does not require turning the head uncomfortably. Rotate the digits until they are upright from the sleeping position, not from the side of the bed where setup occurs.

Projection visibility depends on ambient light, surface color, texture, distance, and personal contrast sensitivity. Red digits can appear crisp on a plain light ceiling and softer on textured paint. The product page does not publish a projection distance range or brightness control separate from the main behavior, so do not promise the same result in a tall hotel room and a low bedroom.

Constant projection can itself become a sleep disturbance. Aim it away from the direct visual field if the red light feels intrusive. The battery-only ten-second mode can actually be the better fit for a light-sensitive sleeper: press when time is needed, then let the room go dark again. A feature is valuable only when its always-on state is wanted.

Folding Cover and Travel

The Protective Cover Is More Travel-Specific Than the Charging Port

Open dimensions are listed as 4.56 inches long, 3.13 inches wide, and 3.11 inches high. Closed dimensions are 4.56 inches long, 0.94 inches wide, and 3.14 inches high. Closing the front turns a three-dimensional bedside stand into a flat protected package. The same cover becomes the support when opened.

That design shields the LCD, front buttons, and projection assembly from direct pressure in luggage. It does not make the clock impact-proof or waterproof. Pack it in a stable section of a carry-on, away from a heavy laptop corner or liquids. The USB-C cable should be coiled separately so its connector does not press against the screen.

Button functions printed inside the cover solve a common travel failure: arriving tired and forgetting which long press enters settings. The current setup flow is conventional. Hold MODE/SET, use UP or DOWN, and press MODE/SET to confirm 12/24-hour format, hour, minutes, year, month, and date. The weekday follows the date.

Time-zone travel remains manual. There is no radio-controlled, GPS, Bluetooth, or Wi-Fi correction. Change the time after arrival, then inspect the alarm because current time and alarm time are separate. A projected image can look perfectly correct while the alarm remains set for the previous schedule.

The front cover requires a firm pull to open according to the setup guide. Practice before packing and avoid forcing the hinge sideways. The compact closed shape is useful for business travel and hotels; campers still need a dry environment, two healthy AAA batteries, and realistic expectations about constant projection without a USB source.

Alarm and LCD

Large Digits Improve Time Reading, While the Wake Signal Remains Conventional

The main time digits are 1.85 inches tall and can display 12- or 24-hour format. The lower area can switch between calendar information and alarm time. White LCD digits offer strong contrast when the backlight is active. High, low, and off settings on USB-C power provide a basic night-brightness choice.

The alarm is set by pressing ALARM to display the alarm time and holding ALARM to enter settings. UP and DOWN change hour and minutes; ALARM confirms. The current guide describes one alarm sequence and an alarm icon that shows when it is active. Do not interpret the marketing phrase “time alarms” as proof of dual independent alarms.

When sounding, the beeper increases in frequency for two minutes and then stops automatically if it is not silenced. The official specification is 73 dB. Press SNOOZE/LIGHT for a ten-minute snooze, or press another button to silence the alarm for 24 hours. Learn that distinction before an early trip: the largest convenient control postpones, while ending the cycle uses a different action.

Seventy-three decibels should not be compared directly with an extra-loud 100–113 dB accessibility clock. Measurement distance and method matter, and the La Crosse page is not positioning this model as a heavy-sleeper alarm. Its wake performance is better suited to an average sleeper who chose the model for display and travel utility.

The calendar can reduce phone checks, but the year, month, and date must be correct for weekday information to be correct. After battery removal or a full reset, walk through the entire settings order instead of stopping after the time appears right.

USB-C Output

The 1 Amp Port Frees a Cable Path, Not a Fast-Charging Strategy

The clock provides a USB-C OUT charging port with a maximum current of 1 A. External charging works only while the clock is connected to USB-C power. A separate device cable is required. La Crosse specifies self-regulating devices and warns that the clock was not designed to charge tablets or devices requiring more than 1 A.

That output can top up a small compatible device overnight or reduce competition for a hotel USB source. It will not reproduce the charging speed of a modern USB Power Delivery adapter. Phone charging time varies, and a power-hungry phone may gain charge slowly while in active use.

Port direction matters because both input and output use USB-C. Read the labels before connecting. The included cable powers the clock; the phone’s own cable connects to the output. If the wall adapter has only one port, the clock becomes part of the charging chain and therefore another possible point of failure.

Keep the primary phone charger for travel if battery state matters. Treat the clock output as a convenience rather than a promise that every device can be charged. This framing prevents a useful secondary feature from becoming the reason the wrong clock is purchased.

Setup and Recovery

One Button at a Time Prevents the Most Avoidable Setup Error

The guide explicitly says to press or hold only one button at a time while adjusting settings. Hold MODE/SET to enter the menu, change values with UP or DOWN, and confirm with MODE/SET. Holding an arrow accelerates changes. The order continues through time format, time, and calendar.

If the clock behaves unexpectedly, La Crosse’s restart process is unusually specific: disconnect USB-C, remove the batteries, press any button twenty times, wait fifteen minutes, then power up again. That process is intended to discharge residual state. It should not be replaced with random button combinations.

Before a critical trip, set the alarm for five minutes ahead in both power modes. Disconnect USB-C and verify the clock and alarm remain configured. Press SNOOZE/LIGHT and observe the ten-second display/projection. Reconnect USB-C, choose the backlight level, and confirm constant projection. Finally, charge a low-stakes device long enough to verify the OUT port and cable.

Alternatives

Choose a Simpler Travel Alarm When the Ceiling Is Not the Viewing Surface

A Braun BC02 removes projection and USB functions in exchange for a smaller one-AA analog package. It fits the traveler who wants a dark room, simple alarm, and no cable. A larger home projection clock can add dual alarms, more projection controls, or stronger charging but usually loses the protective folding case.

Choose the 616A because ceiling or wall time is genuinely easier to read from the pillow and because the two-mode power behavior is acceptable. Without that need, the projector, cable, and orientation controls are complexity rather than value.

Evidence Boundary

The Setup Guide Answers the Questions the Product Photograph Hides

La Crosse’s current page and setup guide support the exact dimensions, 1.85-inch digits, 73 dB alarm, two-minute duration, ten-minute snooze, 90-degree projection rotation, auto focus, 1 A output, required AAA batteries, and USB-C behavior. The guide is especially important because it states the ten-second battery display and constant-USB requirement.

We did not measure projection brightness, verify maximum focus distance, run a six-month battery test, measure USB output under load, or sleep-test the 73 dB alarm. Those values are therefore not converted into subjective ratings. The review identifies what is documented and what should be tested in the real room.

Final Verdict

The 616A Is a Thoughtful Travel Projector When the Cable Is Part of the Plan

The folding cover, printed controls, compact closed profile, adjustable red projection, large LCD, required backup batteries, and included USB-C cable form a coherent travel design. It can arrive protected, open into a stable stand, and give constant ceiling time in a powered hotel room.

Its limits are not defects once they are understood. Battery mode gives brief light and projection, not an all-night image. The alarm is conventional rather than extra loud. The charging output is slow by current phone standards. Buy it when projection solves the viewing problem and USB-C power is expected. Choose a simpler or more forceful category when those conditions are not true.