Socket Type: B22 (bayonet type)/E27 Screw. 1 RGB LED Bulb. Beam Angle: 270 degrees. The speed of flash can be adjusted by 'Dim up/down' key, but the speed Smooth mode cannot be changed. Fit LAND ROVER DISCOVERY 3&4 TDV6 THERMOSTAT HOUSING WATER OUTLET PIPE LR073372.