LDR question

I just wanted to know I have a LDR connected to an LED driver... works fine but the issue is it takes so much light to shut them off.. If I turn on my kitchen light which is a 2 tube florescent they don't shut or dim off..

Facing the LDR at the LED will dim them as well as hitting the LDR with my flashlight.. I'm using a Luxdrive buckpuck and I want to know how can I make it more sensitive to light changes?

having said that what difference does a larger LDR surface make? I've seen some say they have a 1' face but does that mean it's more sensitive?

Please post the schematic.

You can make it more sensitive so that waving your hand will turn the LED on and off.

No schematic since it's prebuilt from Lux drive I was just asking getting a larger LDR 1" in diameter mean it will be more sensitive to light?

my current one is only 6.9mm .27" big

like turning on 2 32W florescent tubes is not enough to turn it off or dim it.

Put a lens in front of it.

Hmm does it have to be a certain type?

From 6 Ft away shinning a flashlight at the sensor still wont turn it off and this is behind a x3 lens