Via select Alexa-enabled devices and for Prime members only, Amazon offers the Philips Hue Go Portable Light, model no. 71460/60/48, for $44.32 with free shipping. (To order, say "Alexa, order Philips Hue Go"; the link is for reference only). That's the lowest total price we could find by $26 and the best deal we've seen for it. It features up to three hours of battery life and smartphone control via iOS or Android app.
Note: This discount is available only on Amazon Echo, Dot, Tap, Fire TV, and compatible Fire tablet devices.