Saved data not showing in multiselect field

$table->json('value_types')->nullable();

Select::make('value_types')
    ->label('Toon meter waarde')
    ->options([
      'temperature' => 'Temperatuur',
      'co2' => 'CO2',
      'movement' => 'Beweging',
      'pressure' => 'Druk',
      'illuminance' => 'Verlichting',
      'io_status' => 'IO Status',
      'humidity' => 'Vochtigheid',
     ])
     ->searchable()
     ->multiple()
     >columnSpan(2),