Canon EL-5 Speedlite V2

The EL-5 Ver. 2 has a guide number of 196.9' at ISO 100 (200mm), the ability to recycle to full power in just 1.2 seconds, and the potential for up to 350 full power flashes on a single charge. It runs on an included rechargeable LP-EL lithium-ion battery using a separately available LC-E6 charger.