Powerful and packed with modern features, the Canon Speedlite EL-5 is tuned for advanced photographers. This model pulls some of the best features—such as a rechargeable Li-ion battery pack and modeling lamp—from the flagship and brings them into a smaller, more accessible package. Maximum guide number of 197' at ISO 100 and 200mm (76Ws) - Runs on rechargeable LP-EL Li-ion battery pack - Up to 350 full-power flashes on a single charge - Able to continuously trigger up to 95 flashes in a row - Manual power from 1/1 to 1/1024