hi.i have three security lights with sencer fitted ,one on front,one on side and one on back side.back side does not work at all.even you walk infront of it,it does not click.side one clicks but does not switch on when you walk infront of it.i have changed bulb but still same.this light has boiler flue close bye and it has been getting lot of steam when wind blows that direction.the one on front works but switches on when windy.all lights have two setting dials under neath one with moon pic and the other with star pic i think.which one is for sencitivity and time setting.are their any lights or brand which are not affected by wind etc.thanks.