Is this made by Disney or a dup?

Well, the box looked legit with all the familiar Disney markings.

Does it have a timer when operated by battery?

You have to cycle through all the different lights. It'll turn off say the end of the cycle. It does not turn off automatically. Unfortunately you have to manually turn it off, which is annoying.

Product Dimensions	33.27 x 18.8 x 10.16 cm; 185.97 g
Batteries	3 AAA batteries required.
Manufacturer recommended age	4 months and up
Item model number	15659
Educational Objective(s)	Literacy & Spacial Awareness
Number of Game Players	1
Number of pieces	1
Assembly Required	No
Batteries Required?	No
Batteries included?	No
tech_spec_battery_description_toys	AAA
Material Type(s)	Plastic
Colour	Brown
ASIN	B07VQKXF4L

Disney Pixar Toy Story Slinky Dog Mood Light | Slinky Dog Mood Lamp | 12 Inches

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