user: Question: What is the Voltage for Model Number C3 866?
Columns: ['Model Number', 'Frequency', 'L2-Cache', 'Front Side Bus', 'Multiplier', 'Voltage', 'Socket']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['C3 800', '800MHz', '64\u2009KiB', '100MHz', '8×', '1.35V', 'Socket 370']
SQL:

assistant: SELECT "Voltage" FROM "Table" WHERE "Model Number" = 'C3 866';