ePathDeals2012 via eBay offers the White Fashion 256-LED Atmosphere Mood Light in White for $14.65 with free shipping. (Black is available for a few cents more.) Outside of the below mention, that's the lowest total price we could find by $4. It features touch controls, a 280mAh rechargeable battery, and a sliding 256-color selector.

A close price: Leder via Amazon offers it for $15.99 with free shipping for Prime members.