Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your La Crosse Technology C83117 Color Mood Light Desk Clock. Please read this manual thoroughly before using the product to ensure proper function and longevity.
Key Features
- Mood light with 5 brightness level settings.
- 5 Nature sounds with timer (15 minute increments up to 90 minutes).
- Wake to Light or Sound Alarm with volume adjustment (8 levels of sound: nature or beep).
- Programmable Snooze and Nap timer (5-120 minutes).
- 1 AMP charging USB port; Included 5.0V power cord (required for USB charge) and one CR2032 button cell battery (for power loss).
Product Overview
Familiarize yourself with the components of your C83117 clock.

Image 1: Front View. The clock displays the time, day, and date, surrounded by a vibrant green mood light. Icons for various functions are visible above the time.

Image 2: Front View with Purple Light. The clock face with a purple mood light, showcasing the color changing capability.

Image 3: Top Control Panel. This image shows the top of the clock with clearly labeled buttons for 'COLOR MODE', 'MOOD LIGHT', 'TIMER', 'SELECT', 'SOUND', 'SET', 'NAP', and alarm settings.

Image 4: Side View with USB Port. The side of the clock featuring a 1 Amp USB charging port for external devices.

Image 5: Product Dimensions. This image illustrates the compact size of the clock, with a width of 3.4 inches and a height of 5.5 inches.
Setup Guide
1. Power Connection
Connect the included 5.0V power cord to the clock and plug it into a standard wall outlet. The clock requires continuous power for full functionality, including the USB charging port. A CR2032 button cell battery is included for backup during power outages.
2. Initial Time and Date Setting
- Press and hold the SET button to enter time setting mode.
- Use the + or - buttons to adjust the hour, then press SET to confirm.
- Repeat for minutes, year, month, and day.
- Press SET again to exit setting mode.
Operating Instructions
Setting Alarms
The clock features two independent alarms (Alarm 1 and Alarm 2).
- Press the 1 (Alarm 1) or 2 (Alarm 2) button to select an alarm. The alarm icon will flash.
- Press and hold the selected alarm button to enter alarm setting mode.
- Use + or - to adjust the alarm hour, then press the alarm button to confirm.
- Repeat for minutes.
- Select wake-up mode: Light, Sound, or both. Use + or - to cycle through options.
- If Sound is selected, press the SOUND button to choose a nature sound or beep. Use SELECT to cycle through sounds.
- Press the alarm button again to exit.
Snooze Function
When an alarm sounds, press the large SNOOZE / LIGHT bar on top of the clock to activate snooze. The alarm will sound again after the preset snooze duration (5-120 minutes, programmable).
Mood Light Operation
- Press the MOOD LIGHT button to turn the mood light on/off.
- Press the COLOR MODE button to cycle through different colors.
- Use the + or - buttons to adjust the brightness of the mood light (5 levels).
Nature Sounds and Sleep Timer
- Press the SOUND button to activate nature sounds.
- Use the SELECT button to cycle through the 5 available nature sounds (Ocean, Backwoods, Thunder, River, Rain).
- Press the TIMER button to set a sleep timer for the nature sounds (15-90 minutes in 15-minute increments). The sounds will automatically turn off after the set time.
- Use + or - to adjust the volume of the nature sounds.
Nap Timer
Press the NAP button to activate the nap timer. Use + or - to set the nap duration (5-120 minutes). The clock will sound an alarm after the nap duration.
USB Charging Port
The 1 AMP USB port on the side of the clock can charge compatible devices. Ensure the clock is connected to its power adapter for this function.
Maintenance
- Cleaning: Wipe the clock with a soft, damp cloth. Do not use abrasive cleaners or chemicals.
- Battery Replacement: The CR2032 button cell battery is for backup only. Replace it annually or when the backup function fails. Ensure correct polarity when inserting a new battery.
- Storage: If storing the clock for an extended period, disconnect it from power and remove the backup battery.
Troubleshooting
| Problem | Solution |
|---|---|
| Clock display is blank or flickering. | Ensure the power adapter is securely plugged into both the clock and a working wall outlet. Check the power source. |
| Alarm does not sound. | Verify the alarm is set correctly and enabled. Check the alarm volume settings. |
| Mood light is not working. | Press the MOOD LIGHT button to turn it on. Ensure the clock is powered. |
| USB charging port not working. | Confirm the clock is connected to its primary power adapter. The USB port requires external power. |
| Time/Date incorrect after power outage. | Replace the CR2032 backup battery. Reset time and date manually if necessary. |
Specifications
- Model: C83117
- Dimensions: 3.4" W x 5.5" H
- Power Source: 5.0V AC Adapter (included), 1 x CR2032 button cell battery (backup, included)
- USB Charging Output: 1 Amp
- Mood Light: Multi-color, 5 brightness levels
- Nature Sounds: 5 options (Ocean, Backwoods, Thunder, River, Rain)
- Alarm: Dual alarms, Wake to Light or Sound (8 volume levels)
- Snooze/Nap Timer: Programmable (5-120 minutes)
Warranty and Support
For warranty information and customer support, please visit the official La Crosse Technology website or refer to the product packaging. Keep your purchase receipt as proof of purchase.
Online Support: www.lacrossetechnology.com/support





