Reverse light not bright enough

Hey guys,

I don't know if I am the only one with this problem, hoping someone will be able to help me!

I have a parking at my appartment, it is in a little street with not a lot of light around. When I want to leave, I am always affraid to hit something with my car while backing since the space is really really small and many other cars, electric post and fences are close.

I don't see a difference when my backing lights are on or off. Is there a way to put something that will be CLEARLY more bright?

I've bought many kind of LEDs, they are brighter, but it does not make a big difference.

I made once a dream that I had HID backing lights... Not a bad idea though! Haha

Any advice guys??

Thanks!