An L-2 visa is a visa document used to enter the United States by the dependent spouse and unmarried children under 21 years of age of qualified L-1 visa holders. It is a non-immigrant visa, and is only valid for the duration of the spouse's L1 visa.
Read more about L-2 Visa: Employment With L2 Visa, Renewals, The L2 Visa, Privileges, Allowable Length of Stay, How To Apply, Length of Processing, Employment Authorization Is Not Received Within 90 Days, Length of Validity, Type of Employment, H-1B Temporary Professional Working Status, Adjustment To Legal Permanent Resident, Advance Parole When Travelling Abroad, Change From H-4 To L-2 Status To Get Work Authorization