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Transformer 10V DC V110 by LEGO® Education (45517) - Techtronics Innovation
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LEGO 45517 Transformer 10V DC
10v 700ma Au Plug Ac Dc Adapter Charger For Lego Mindstorms Ev3 Nxt 45517 Power Supply For Lithium-ion Batteries Uk Eu Us Plug - Ac/dc Adapters - AliExpress
AC Adapter, 220V - 10V Transformer (for use with 8878, 9693, and 45501) - BS 1363 Plug : Set 45517-3 | BrickLink