Wireless Studio Flash 800w This amazingly powerful, bring anywhere flash is really versatile, if fact we think it is the only flash you will ever need. Use it in the studio or on the beach or anywhere you choose. Up to 500 full power flashes on each battery charge and with a fast recycle time you can use this anywhere.  The trigger that you mount on the camera allows you to change the power up or down remotely - now that is a handy! Canon ettl and High Speed sync enabled. This flash is so powerful we have included a free scraper for scraping small children off the wall. (ok, I made that last bit up, you have to buy your own scraper!)