The promo code ‘OFTBALMG’  offered in a limited time on Amazon to take extra 15% off Lampchamp USB lamp socket.  The Lampchamp USB lamp socket is designed to turn any standard lamp into a USB Charging Station. It inputs right where in 100-240V AC, 50/60 Hz, and outputs 5V DC, 2A for power and charge. Promo code ‘OFTBALMG’ is valid in July, 2016. Click the promo code to Amazon, save on Lampchamp USB lamp socket right now >>>