Product Overview: The TES1-04903 is a compact, high-performance thermoelectric cooler (Peltier module). By applying a 5V DC power source, this module creates a temperature differential, allowing for rapid cooling on one side and heating on the other. Its small 20mm footprint makes it ideal for precise temperature control in compact electronics, DIY beverage coolers, or dehumidifier projects.

Key Features:

• Compact Size: 20mm x 20mm x 4mm form factor fits tight spaces.
• Solid State Reliability: No moving parts, vibration-free, and noise-free operation.
• Rapid Cooling: Efficiently transfers heat for quick temperature reduction.
• Standard Leads: Comes with pre-attached red/black wire leads for easy connection.

Technical Specifications:

• Model: TES1-04903 SR
• Voltage: 5V DC
• Current (Max): 3A
• Dimensions: 20mm (L) x 20mm (W) x 4mm (H)
• Wire Length: Standard ~15cm (approx.)

⚠️ Important Safety Note: You must use a heatsink and thermal paste on the "hot side" of the module. Powering this device for more than 2 seconds without adequate heat dissipation will burn out the module instantly.