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Consultation Hotline：
Smart mirrors are moving beyond traditional touch control. By combining touch buttons with automatic sensing technology, LED bathroom mirrors can provide a more intelligent and convenient user experience.
DZOPTO, a professional smart mirror accessories and electronic control solutions manufacturer in China, introduces the LTZN-03S-LD 3-Key Radar Touch Switch, combining capacitive touch control and radar sensing technology for LED bathroom mirrors, smart mirrors and mirror cabinets.
The controller supports radar sensing, 3-key touch control, 3-color temperature adjustment, stepless dimming, defogger control and memory functions, providing mirror manufacturers with a multifunctional smart control solution.
One of the key features of the LTZN-03S-LD is its integrated radar sensing function.
The radar sensor provides automatic detection with a sensing distance of approximately 1.5–2 meters from the left or right side, allowing the mirror lighting system to respond to user presence without requiring direct contact with the mirror.
The radar sensing function can extend for approximately 30 seconds, making it suitable for intelligent bathroom mirror applications where convenient and hands-free operation is required.
Compared with a conventional touch-only mirror switch, radar sensing adds another level of automation to the smart mirror experience.
The LTZN-03S-LD combines two control technologies:
Capacitive Touch Control
Users can directly control mirror lighting and related functions through the touch keys.
Radar Sensing
The integrated radar sensor can automatically detect user presence from the left or right side.
Combining these two technologies allows mirror manufacturers to develop products that offer both manual touch operation and intelligent automatic sensing.
The controller features a 3-key touch interface, providing more control options than traditional single-key or two-key mirror switches.
The system can be used to manage multiple mirror functions, including:
LED Light ON/OFF
3-Color Temperature Adjustment
Stepless Dimming
Defogger Control
Radar Sensing
Lighting Memory
This makes the LTZN-03S-LD particularly suitable for multifunctional smart bathroom mirrors.
The lighting control supports switching between three different color temperatures.
Users can cycle through:
White Light → Warm Light → Neutral Light → OFF
Different color temperatures allow the mirror lighting to adapt to different environments and user preferences.
White light can provide a bright and clear lighting environment, while warm and neutral lighting can create different visual effects for bathrooms, dressing areas and other mirror applications.
The LTZN-03S-LD supports stepless brightness adjustment.
Users can long-press the touch control to increase or decrease the LED brightness, allowing the mirror light to be adjusted according to different environments.
The main lighting output supports approximately 10%–100% brightness adjustment.
This feature is particularly useful for smart bathroom mirrors and vanity applications where users require different lighting levels throughout the day.
The controller includes a 3-color temperature independent memory function.
This allows the system to retain lighting settings and provides a more convenient experience when the mirror is used repeatedly.
Memory functions are becoming increasingly important in modern smart mirror products because users expect their preferred lighting settings to remain available without having to readjust the mirror every time.
The LTZN-03S-LD can also support mirror defogger control.
This makes it particularly suitable for LED bathroom mirrors, where condensation can form on the mirror surface after showers or hot water use.
By integrating lighting, dimming, color temperature and defogger control into one electronic control system, mirror manufacturers can simplify the overall control interface of the finished product.
The defogger output adjustment range shown for this controller is approximately 5%–50%.
The controller uses a dual-color indicator system to show operating status clearly.
Standby: White Indicator
Working: Blue Indicator
This provides users with a simple visual indication of the current operating state.
Model: LTZN-03S-LD
Input Voltage: DC12V
Output: DC12V / 5A / 60W
Weight: 58g
Dimensions: 51.4 × 153 × 9 mm
Supported Glass Thickness: 3–8 mm
Touch Diameter: 18–20 mm
Icon Spacing: 24.5 mm
Sensor Mode: Capacitive Touch + Radar Sensing
Radar Sensing Distance: Approx. 1.5–2 m, Left/Right
Radar Extension Time: Approx. 30 seconds
Indicator: Standby White / Working Blue
Memory: Independent 3-Color Temperature Memory
With a thickness of only approximately 9 mm, the control module can be integrated behind different smart mirror structures.
Traditional LED mirrors usually rely on a physical switch or capacitive touch button.
Radar sensing provides mirror manufacturers with another way to create a more intelligent product.
When a user approaches the mirror, the sensing system can detect their presence without requiring direct contact with the glass.
This makes radar sensing particularly interesting for:
Smart Bathroom Mirrors
High-End LED Mirrors
Hotel Bathroom Mirrors
Smart Mirror Cabinets
Commercial Mirrors
Intelligent Home Applications
For brands developing premium smart mirrors, radar sensing can also become an additional product differentiation feature.
DZOPTO provides different sensing solutions for different mirror designs.
An IR hand-wave sensor switch normally requires the user to move a hand close to the sensor.
A radar sensor switch can detect presence from a greater distance and does not require the user to wave directly in front of the control area.
Therefore, the two technologies are suitable for different product concepts.
IR Hand-Wave: close-range, intentional hand-wave operation.
Radar Sensing: longer-range automatic presence detection.
Mirror manufacturers can select the appropriate control technology according to product positioning and target market requirements.
The 3-key radar touch controller is suitable for:
Smart LED Bathroom Mirrors
LED Bathroom Mirrors
Smart Mirror Cabinets
LED Mirror Cabinets
Telephone
