set database: LEGO 9694 color sensor

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set number: 9694
set name: color sensor
theme: technic, mindstorms
year: 2010
piece: 1
price: us$35
minifig: none
come with a color sensor.
the sensor can recognize 6 colors, black and white.
the sensor can emit 3 colors: red, green, blue.
overall design is good.
must have for technic fans.

set database: LEGO 9833 rechargeable battery

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set number: 9833
set name: transformer 9 V
theme: technic, mindstorms
year: 1996
piece: 1
price: us$24
minifig: none

come with a transformer 9V.
designed for charging 9798 rechargeable battery. 

overall design is good.

set database: LEGO 9798 rechargeable battery

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set number: 9798
set name: rechargeable battery
theme: technic, mindstorms
year: 2006
piece: 1
price: us$50
minifig: none

come with a rechargeable battery box.
designed for use with 9841 NXT intelligent brick.

inside has a built-in lithium batteries.
it has capacity of 1400 mAh.

rechargeabled with 9833 transformer 9V.

overall design is good.

set database: LEGO 9841 NXT intelligent brick

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set number: 9841
set name: NXT intelligent brick
theme: technic, mindstorms, mindstorms NXT
year: 2006
piece: 1
price: us$150
minifig: none

come with an NXT intelligent brick.
the intelligent brick has 32-bit microprocessor, 4 input port, 3 output port and a bluetooth and usb communication link.
can be powered by 6 AA (1.5v) batteries or 9693 NXT DC rechargeable battery or 9798 rechargeable battery.

overall design is great.

set database: LEGO 9693 NXT DC rechargeable battery

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set number: 9693
set name: NXT DC rechargeable battery
theme: technic, mindstorms
year: 2010
piece: 1
price: us$60
minifig: none

come with a rechargeable battery box.
designed for use with 9841 NXT intelligent brick.

inside has a built-in lithium ion polymer batteries.
it has capacity of 2100 mAh.

rechargeabled with 8887 transformer 10V DC.

overall design is good.

set database: LEGO 45501 rechargeable DC battery

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set number: 45501
set name: rechargeable DC battery
theme: technic, mindstorms
year: 2013
piece: 1
price: us$60
minifig: none

come with a rechargeable battery box.
designed for use with the EV3 intelligent brick.

inside has a built-in lithium ion batteries.
it has capacity of 2050 mAh.

rechargeabled with 8887 transformer 10V DC.

overall design is good.

set database: LEGO 9917 DCP sensor connector cable

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set number: 9917
set name: DCP sensor connector cable
theme: technic, mindstorms
year: 2000
piece: 1
price: us$60
minifig: none
come with a connector cable.
the cable connect between RCX and DCP sensors.
overall design is good.
must have for technic fans.

set database: LEGO 9670 LEGO® e-motor

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set number: 9670
set name: LEGO® e-motor
theme: technic, mindstorms
year: 2010
piece: 1
price: us$17
minifig: none
come with an e-motor.
the motor is a 9V type with internal gearbox.
the gearing ratio is 9.5:1.
it has maximum torque of 4.5 Ncm and 800 rotations per minute.
overall design is good.
must have for technic fans.

set database: LEGO 9669 LEGO® energy storage

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set number: 9669
set name: LEGO® energy storage
theme: technic, mindstorms
year: 2010
piece: 1
price: us$18
minifig: none
come with an energy storage.
the storage capacity is 150 mAh with NiMH battery.
overall design is good.
must have for technic fans.

set database: LEGO 9668 LEGO® energy display

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set number: 9668
set name: LEGO® energy display
theme: technic, mindstorms
year: 2010
piece: 1
price: us$52
minifig: none
come with an energy display.
the display can show energy storage level in joules and input output in volts, watts and amps.
overall design is great.
must have for technic fans.

set database: LEGO 9667 LEGO® solar panel

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set number: 9667
set name: LEGO® solar panel
theme: technic, mindstorms
year: 2010
piece: 1
price: us$41
minifig: none
come with a solar panel.
the panel can provide power to operate LEGO energy meter and motors.
it has 5V, 4 mA from a 60W incandescent bulb 25 cm far.
overall design is great.
must have for technic fans.

set database: LEGO 9736 mindstorms exploration mars robotics invention system expansion set

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set number: 9736
set name: mindstorms exploration mars robotics invention system expansion set
theme: technic, mindstorms 1.5
year: 2000
pieces: 155
price: us$50
minifig: none
expansion kit for 9747 mindstorms robotics invention system 1.5.
come with an exploration mars cd rom and technic bricks.
instruction book included 5 robot designs.
great playability.
overall design is great.
must have for technic lovers.

set database: LEGO 9732 mindstorms extreme creatures robotics invention system expansion set

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set number: 9732
set name: mindstorms extreme creatures robotics invention system expansion set
theme: technic, mindstorms 1.0
year: 1998
pieces: 149
price: us$50
minifig: none
expansion kit for 9719 mindstorms robotics invention system.
come with an extreme creatures cd rom, a fibre optics element and technic bricks.
instruction book included 12 robot designs.
great playability.
overall design is great.
must have for technic lovers.