Hackers Help: Can I extend the JANSJO Lamp Flex?

jansjo-led-work-lamp
Photo: IKEA.com

Hiya,

I’ve just bought my wife a Jansjo lamp, and am wanting to extend the lead from the switch to the lamp.

But, IKEA say ‘The external flexible cable or cord cannot be replaced – If so the lamp will be destroyed’

Is this correct? – Has anybody tried it?

Looking forward to hearing from anybody.

Happy New Year!