Top positive review
Excellent supplementary flash device.
4 January 2017
I'm delighted with this little product, which is used mainly for in-fill lighting on close-ups taken with a Canon G12. It seems to be completely reliable and will trigger even when placed some feet away, giving fine control over the amount of in-filling. The camera automatic exposure facility is lost when using the device but it is easy to overcome this by selecting a different ISO speed setting.
Update October 2017: I made the mistake of leaving the originally supplied batteries (D&G) in the unit for some months. They leaked badly, damaging the electronics. No criticism of the device itself. As I'd otherwise been so pleased I ordered another unit to replace the damaged one - and won't be leaving the batteries in.