The replacement LED lights sadly emit a really cold, blue hue and are very, very far from the warm traditional light string they replaced. Had hoped the dimmer switch would help. The switch works great but will unfortunately not help with the coldness of the LED lights. My cotton balls are white and light grey, might be ok if you have warmer coloured balls. Also, was sent a extension cable instead of the dimmer switch ordered. Completely understand orders can sometimes be incorrect and my e-mail was promptly answered with assurance of the correct item being sent via express delivery. However, not so much express as it took 4 days to arrive via courier.