ITEM NAME:3.7~12V Heated Vest Pants Temperature Controller Switch Silicone Button Swi- OZ Voltage: 3.7V-12V *Thickness:0.8cm *Size:Width 3cm, Length 3cm Materials:Waterproof silicone Wire:4lines 4 Lines controller: It had 3 modes temperature setting, Red light on and output 100%, White light on and output 70%, Blue light on and output 45%. 4 line controllers don't have timing function, please pay attention to that..Materials:Waterproof silicone. It had 3 modes temperature setting. Size:Width 3cm, Length 3cm.