4.5V

4.5V used to be the voltage standard for the first electric components (e.g. motors, lights) in certain LEGO sets. The power came from a battery box with 3x 1.5V batteries.
Beside Basic sets and TECHNIC sets, the 4.5V standard was used for motorization of the first electric LEGO Trains which marked a long era from 1966 until 1986.
Later the 4.5V standard was used for battery operated DUPLO Trains, too.
== 4.5V powered Themes ==
* Basic
* Trains
* TECHNIC
* DUPLO > DUPLO Trains
== Basic ==
* 088 4.5V Super Set (1969)
* 107 4.5V Reversible Power Unit (1971)
* 816 Lighting Bricks, 4.5V (1986)
* 970 Lighting Bricks (1978)
== Trains ==
* 104 4.5V Replacement Motor (1970)
* 112 Locomotive with Motor (1966)
* 113 Motorized Train Set (1966)
* 118 Motorized Freight or Passenger Train (1969)
* 119 Super Train Set (1968)
* 120 Complete Freight Train with Tipper Trucks (1969)
* 127 Complete Train with 3 Wagons (1971)
* 133 Locomotive (1975)
* 161 Battery Wagon (1972)
* 162 Locomotive (1977)
* 180 4.5V Train with 5 Wagons (1972)
* 181 Train Set with Motor, Signals and Shunting Switch (1972)
* 182 Train Set with Motor (1975) - Train Set with Signal
* 183 Train Set with Motor and Signal (1976)
* 7710 Push-Along Passenger Steam Train (1980)
* 7720 Diesel Freight Train Set (1980)
* 7722 Steam Cargo Train Set (1985)
== TECHNIC ==
* 870 Technical Motor, 4.5 V (1978)
== DUPLO ==
* 3771 Train Starter Set (2005)
* 3772 Deluxe Train Set (2005)
* 5608 Train Starter Set (2008)
* 5609 Deluxe Train Set (2008)
== Service Packs ==
* 3 Battery Box (1977)
* 4 4.5V Motor Battery Cables (1977)
* 7 Train Signal with Ties (1981)
* 7 Battery Box (1981)
* 8 Replacement 4.5V Motor (1981)
* 11 Locomotive Traction Tires (1977)
* 12 Wheel Bearings for Locomotives (1977)
* 15 Lighting Brick (2 x 2) (1977)
* 19 Locomotive Piston Assemblies (1977)
* 29 4.5V Motor (1977)
* 1101 Replacement 4.5V Motor (1980)
* 1103 Battery Box (1977)
* 1111 Rubber Rims for Locomotive Wheels (1977)
* 1112 Train Sliding Wheel Blocks (1977)
* 1115 Lighting Brick, 4.5V (1980)
* 1119 Locomotive Piston Assemblies (1977)
* 1138 Replacement Rubber Wheel Treads for Trains (1981)
* 1168 Battery Box (1986)
* 1175 4.5V Motor (1978)
* 5000 Replacement 4.5 V Motor (1987)
* 5001 4 Wheel Bushes for 4.5 V Basic Motor (1987)
* 5003 2 Lighting Bricks 4.5 V (1987)
* 5005 Battery Box Grey 4.5 V for use with Basic set 816 (1987)
* 5007 Basic Motor 4.5 V, Motor and Gear Housing. For use with set 810 (1989)
* 5075 Tender 4.5 V Battery Red. For Trains with Battery Motor 810 (1987)
* 5100 Battery Box (Tube) 4.5 V (1987)
* 5101 4.5V Motor for Technical Sets (1987)
== Idea Books ==
* 241 4.5v Idea Book
== Complete List ==
* 002 4.5V Gears Motor Set
* 088 4.5V Super Set
* 1 Replacement 4.5 V Motor
* 100 Motor with Wheels and Wire
* 101 4.5V Battery Case
* 101 4.5V Battery Case.
* 102 Front End Loader
* 102A Front-End Loader
* 104 4.5V Replacement Motor
* 107 4.5V Motor Set
* 108 Battery Box
* 1092 TECHNIC Control 2
* 11 Locomotive Traction Tyres
* 1101 Replacement 4.5V Motor
* 1103 Battery Box
* 1104 Battery Cables
* 1111 Rubber Rims for Locomotive Wheels
* 1112 Train Sliding Wheel Blocks
* 1115 4.5V Lighting Brick (2 x 2)
* 1119 Locomotive Piston Assemblies
* 112 Locomotive with Motor
* 113 Motorized Train Set
* 1135 Battery Cable Kit: 12 Connectors, 3m Cable
* 1137 Train Couplings
* 1138 Replacement Rubber Wheel Treads for Trains
* 1139 Motor-mount Plate with Magnetic Couplers
* 1141 2 Wheel Bricks with Attached Small Red Train-wheels
* 1142 2 Wheel Bricks with Attached Small Black Train-wheels
* 1143 2 Wheel Bricks with Attached Large Red Train-wheels
* 1144 Train Baseplate
* 1145 Bogie Plate
* 116 Starter Train Set with Motor
* 1168 Battery Box
* 117 Locomotive Without Motor
* 1175 4.5V Motor
* 118 Electronic Train
* 118 Motorized Freight or Passenger Train
* 119 Super Train Set
* 12 Wheel Bearings for Locomotives
* 120 Complete Freight Train with Tipper Trucks
* 122 Loco & Tender
* 124 Goods Wagon
* 126 Steam Locomotive
* 127 Complete Train with 3 Wagons
* 128 Mobile Crane
* 130 Double Tipper Wagon
* 131 Passenger Coach
* 132 Port Crane and Flat Waggon
* 133 Locomotive
* 134 Mobile Crane and Wagon
* 136 Tanker Wagon
* 137 Passenger Sleeping Car
* 138 Electronic Train
* 146 Level Crossing
* 147 Refrigerated Wagon
* 148 Station
* 149 Fuel Refinery
* 15 Lighting Brick (2 x 2)
* 150 Straight Track
* 151 Curved Track
* 154 Rail Points
* 155 2 Cross Rails, 8 Straight Tracks, 4 Base Plates
* 156 2 Rail Signals
* 156 Straight Rails with Sleepers
* 157 Automatic Direction Changer
* 157 Curved Rails with Sleepers
* 159 Straight Rails and Crossing
* 160 Magnetic Couplings
* 161 Battery Wagon
* 162 Locomotive
* 163 Cargo Wagon
* 164 Passenger Coach
* 165 Cargo Station
* 166 Flat Wagon
* 167 Car Transport Wagon
* 170 Push-Along Play Train
* 171 Train Set without Motor
* 180 4.5V Train with 5 Wagons
* 181 Train Set with Motor, Signals and Shunting Switch
* 182 Train Set with Motor
* 183 Train Set with Motor and Signal
* 19 Locomotive Piston Assemblies
* 29 4.5V Motor
* 3 Battery Box
* 4 4.5V Motor Battery Cables
* 445 Lighting Device Pack
* 5000 Replacement 4.5 V Motor
* 5001 Wheel Bushes for 4.5v Motor
* 5003 4.5v Lighting Bricks
* 5005 Battery Box
* 5100 Battery Rod 4.5V
* 5101 4.5V Motor for Technical Sets
* 7 Battery Box
* 7 Train Signal with Ties
* 7710 Push-Along Passenger Steam Train
* 7720 Diesel Freight Train Set
* 7722 Steam Cargo Train Set
* 7810 Push-Along Steam Engine
* 7813 Shell Tanker Wagon
* 7814 Crane Wagon
* 7815 Passenger Carriage / Sleeper
* 7816 Shell Tanker Wagon
* 7817 Crane Wagon
* 7818 Passenger Wagon
* 7819 Postal Container Wagon
* 7820 Mail Van
* 7821 Track & Lighting Maintenance Wagon
* 7821 Track Maintenance Vehicle
* 7822 Railway Station
* 7824 Railway Station
* 7835 Road Crossing
* 7838 Freight Loading Depot
* 7850 Straight Rails
* 7851 Curved Rails
* 7852 Points
* 7853 Crossing
* 8 Replacement 4.5V Motor
* 870 Technical Motor, 4.5V
* 901 4.5V Universal Motor
* 9605 4.5v TECHNIC Resource Set
 
Category:Themes
Category:Basic
Category:Trains
Category:DUPLO Trains
Category:Service Packs
Category:TECHNIC