Thermoelectric Peltier Module 33W 4A | Bismuth Telluride, Cooling & Heating to ±100°C

You're prototyping a cooling unit, a small fridge, or a thermal test rig and you need a solid-state heat pump that actually moves heat in both directions. No compressor, no refrigerant, no moving parts. This 33W / 4A Peltier module uses Bismuth Telluride ceramic plates to transfer heat via the Peltier effect — flip the current, flip the direction. Handles cooling or heating up to 100 °C differential. Solder it in, drive it with a DC supply, and your thermal loop works. Grab one and get your bench project moving

• 33W rated thermoelectric module at 4A for compact cooling or heating circuits
• Bismuth Telluride ceramic plates — solid-state, no moving parts or refrigerant
• Reversible heat pump: cool or heat up to 100 °C temperature differential
• Peltier-effect operation; simply reverse current polarity to switch direction
• Suitable for DIY thermal management, small fridges, and lab test rigs