What is the Voltage for Model Number c3 866?
CREATE TABLE table_name_21 (
    voltage VARCHAR,
    model_number VARCHAR
)
SELECT voltage FROM table_name_21 WHERE model_number = "c3 866"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the Voltage for Model Number c3 866? ### Input: CREATE TABLE table_name_21 (
    voltage VARCHAR,
    model_number VARCHAR
) ### Response: SELECT voltage FROM table_name_21 WHERE model_number = "c3 866"