Amazon offers Prime members the Sunforce 80-LED Solar Motion Light, model no. 82080, for $28.85 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $7.26.) That's the lowest total price we could find by $5, $4 under our April mention, and the best deal we've seen. It features a 30-foot detection range and three control dials.