M-1137 reading table lamp features a brushed nickel finish. Available with halogen or LED lamping option. One 50 watt, 12 volt, T4 GY6.35 base halogen lamp or (1) 4 watt, 12 volt, warm white LED included. General light distribution. ETL listed. Head diameter is 4.75 inches. Overall dimensions are 5.38W x 4.38H with a maximum arm extension of 36.75 inches.