Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_49 (voltage VARCHAR, model_number VARCHAR)
### Question:
What's the voltage for the pentium dual-core e2140?
### Answer:
SELECT voltage FROM table_name_49 WHERE model_number = "pentium dual-core e2140"