Technical specifications indicate that the ecobee3 Lite utilizes a Broadcom BCM43907 chipset to support dual-band Wi-Fi connectivity at both 2.4GHz and 5GHz. The unit employs a robust HomeKit Accessory Protocol (HAP), which facilitates local polling and control, bypassing the requirement for external cloud servers for standard scheduling operations. The hardware interface supports 2-heat/2-cool conventional systems and 3-heat/2-cool heat pump configurations.
Material analysis confirms the inclusion of a Power Extender Kit (PEK) for installations lacking a dedicated C-wire, re-tasking the G-wire for 24VAC power delivery. Internal circuitry utilizes solid-state switching for stage relays, which reduces mechanical noise during operation. The bundled SmartSensors utilize a proprietary 915MHz sub-GHz radio, providing improved signal penetration through structural barriers compared to 2.4GHz or Bluetooth protocols.
- Wi-Fi: 802.11 b/g/n (2.4/5GHz)
- Power Input: 24VAC via C-wire or PEK
- Sensor Protocol: 915MHz Sub-GHz
While the display features a non-glass finish, the primary interaction remains digital. If extensive exterior security is required alongside climate control, the ecobee Smart Home Security Bundle provides an expanded hardware suite including HDR video monitoring.
Comparative architectural standards for these devices are maintained within the thermostats repository.
