Thermoelectric cooling (TEC, Peltier effect) is the core technology for achieving precise and rapid dual cooling and heating effects in current eye energy meters / eye protection devices. Compared with traditional methods, it has significant advantages in temperature control, response, volume, and safety.
I. Core Principle: Peltier Effect
When direct current passes through an electric pair composed of two different semiconductor materials (N-type / P-type)thermoelectric material, heat is absorbed / released at the connection point, forming a cold end and a hot end:
Cooling (cold therapy): The cold end is placed around the eye area to absorb heat and lower temperature
Heating (hot therapy): Reverse the current direction, and the cold / hot ends are swapped
Eye energy meter structure
Cold end: Metal / ceramic heat-conducting sheet (contact around eyes)
Hot end： Miniature heat dissipation plate + silent fan (for heat dissipation)
Control： NTC thermistor + MCU (±1℃ precise temperature control)
II. The main application functions of the eye energy meter
1. Cold Compress Mode (10–22℃)
Quickly reduce swelling: Constrict blood vessels, alleviate dark circles and puffiness caused by staying up late or waking up early
Relieve congestion: Reduce redness, eye fatigue and burning sensation
Soothe and calm: Alleviate allergies, post-surgery (laser/ plastic surgery) discomfort
Refresh and brighten: Improve afternoon drowsiness and dark circles around the eyes.
2. Hot Compress Mode (38–42℃)
Promote circulation: Fade dark circles, improve metabolism
Relieve dryness: Soften meibomian glands, improve dry eye syndrome
Relax muscles: Relieve eye strain and soreness
Help sleep: Warm compress before bedtime to relax nerves.
3. Cold and Hot Alternation / Cycle Mode
Cold and hot alternation: First apply hot compress to open circulation → then apply cold compress to constrict and reduce swelling, enhancing the care effect
Intelligent temperature control: NTC real-time monitoring to prevent overcooling / overheating stimulation
III. Technical Advantages
Features: thermoelectric cooling (TEC)
Response speed: Seconds: 3 seconds for cooling, 5 seconds for heating
Temperature control accuracy: ±1℃ with adjustable precision
Mode switching: One-click interconversion between cooling and heating
Size / Noise: Compact, quiet, portable
Safety: No refrigerant, no mechanical wear
Life expectancy: Long (up to tens of thousands of hours)
Eye care device (cold and hot eye protection device) commonly uses thermoelectric cooling modules, thermoelectric module, peltier cooler, TEC mdoule (TECs, peltier modules). These peltier modules, peltier elements, TEC modules, thermoelectric modules are mainly small in size, operate at low voltages (3.7V – 12V), and have low currents. The core models are mainly in the TES1/TEC1 series, with sizes typically being 15×30mm, 20×20mm, and 30×30mm.
1. Mainstream standard models (most commonly used)
1. Low-voltage portable model (built-in lithium battery: 3.7V – 7.4V) TES1-03103T125 / TEC1-03103T125
Specification: 20×20mm, 3.7V, 3A
Features: Low power consumption, suitable for single eye / small eye care devices TES1-06303T125
Specification: 15×30mm, 7.4V, 3A
Features: Thin design, fits around the eyes, dual effect of cooling and heating, fast action TES1-03106T125
Specification: 20×20mm, 3.7V, 6A
Features: Faster cooling speed, commonly used in mid-to-high-end portable models
2. 12V standard model (plugged-in / large-sized eye-protection device with battery) TEC1-07103T125 / TEC1-07104T125
Specification: 25×25mm / 30×30mm, 12V, 3–4A
Features: Stable temperature control, quick cold-to-hot switch TEC1-09503T125 / TEC1-09504T125
Specification: 30×40mm, 11V, 4–5A
Features: Higher cooling capacity and faster cooling (effectiveness within 3–5 seconds) TEC1-12703T125 / TEC1-12704T125
Specification: 30×30mm, 12V, 3–4A
Features: Universal type, large temperature difference, high reliability .
The thermoelectric cooling module, peltier module, peltier cooler, thermoelectric cooler, TEC module model used in the small eye brightening pen is: TES1-03102T125 (8.3×8.3mm)
The thermoelectric cooling module, TEC module,thermoelectric module model used in the double-eye massage device is: TEC1-09504T125 (30X40mm), TEC1-12704 (30×30mm).
The peltier element ,thermoelectric module ,Peltier device model used in the ultra-thin eye protection device is: TES1-06303T125 (15×30mm).
Post time: Mar-21-2026
