Adorama offers the Bescor 25-watt LED On-Camera Light for Camcorders and DSLRs
, model no. LED25, for $24.95
with free shipping
. (B&H Photo Video
charges the same.) That's the lowest total price we could find by $15. This light features 20 LEDs, 25 watts of illumination, hot shoe mount, side bracket, and is powered by two AA batteries (included).