Ending today, Newegg offers the Rosewill 2-Piece USB LED Lighting Set 2-Pack, model no. RU-102, for a $4.42 profit, via the instructions below. With free shipping, that's $48 off and the lowest total price we could find. It features a gooseneck LED light and LED light bulb. To get this deal:

1. View the Rosewill 2-Piece USB LED Lighting Set for $16.99
2. add two to your cart and apply coupon code "EMCEGGJ93" to cut it $21.58
3. redeem these two $13 mail-in rebates for a final $4.42 profit