New product from IDX:
http://www.idx.tv/jp/assets/files/products/X10_1310.pdf

The X10-Lite is a professional LED on-board camera light utilizing
powerful LED technology. It outputs 1450 lux (1m) and can be powered
by supplied D-tap connector or optional battery power source.
The X10-Lite has low power consumption and is equipped with an
adjustable dimmer.
Advantages of X10-Lite LED Technology:
Low power consumption of 16W producing 1450 lux (1m) of light; enough to light a bench of 3 people across a room
Heat-free output from the LEDs ensures light quality remains completely unaffected by run time
Extremely long life with 50,000 hours usage.
Eliminates the need for bulbs, either for replacement or the carrying of spares.
LEDs are protected by a sealed scratch resistant lens, making the X10-Lite suitable for outdoor use.

X10-Lite Product Features:
Fully adjustable light dimmer with no quality loss on beam.
Includes 2-pin D-Tap power connector.
Camera shoe mount for easy attachment. The shoe mount can
remain securely fitted to the camera or tripod when the light is
disconnected.
Stylish enclosure and compact in design, the X10-Lite is
4.25(W) x 5.90(H) x 5.07(D) inches and weighs 1.03 lbs.

Available Models:
X10-Lite: Can be powered by IDX SSL-JVC50 battery
X10-Lite-S: Can be powered by Sony NP-F970 or equivalent battery
All models include storage/carrying case