Drupal 7: naming node with Theme Developer

I'm working on a Drupal 7 website. I need a custom node for a page, and I used Theme Developer module to find the candidate name for the node which I attached screenshot below开发者_开发问答. But it doesn't take action when I name as node__28.tpl.php

What am I missing?! Thanks a lot! appreciate helps!

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It should work with node--##.tpl.php.

And don't forget to clear cache.