The new SmartFlashes are a low-cost, high-featured line of products. Boasting powerful guide numbers in a sleek, compact package, these new SmartFlashes are just that; SMART! Do not overlook the new ultra-fast recycling IBGT circuitry feature. When used in program mode, these SmartFlash's recycle almost instantaneously. THAT IS A HUGE FEATURE. The beautiful exposures produced by these units belie their diminutive stature. Photographers will love the compactness while being impressed with their power and accuracy!