Sensitivity of the brake lights switch

[JustDerv]

Hi,

After some more advice again! Couple of months ago all brake lights failed, and it turned out to be a faulty switch under the brake pedal. This was replaced with a new part and lights ok.

However, I've noticed that now the brake lights don't come on when I touch the pedal, nor when it's just light braking. They only come on once I've depressed the pedal a certain distance, and this corresponds with heavy braking.

so, is there an adjustment of some kind I can do on the switch to get the lights to come on when I start depressing the pedal, rather than when I am braking more heavily?

Thanks