does my lenovo have key board lights

[WPCentral Question]

I just bought it a couple days ago and I thought it had key board lights. but now it doesnt

 

[Omoronovo]

Which machine is it? I have a lenovo thinkpad T420 and T430, both of which don't have lights.
The lenovo Y510p my partner has does have lights, and they are enabled by pressing fn (function key) and spacebar. Press it repeatedly to cycle through the various brightness levels.