Neewer TT560 vs Neewer 750II

The TT560 costs only a little over $30 but it has a very durable, robust housing. It also has some useful features that you can rarely find in budget speedlights, like battery saver and overheating protection.

If the inner circuits begin to overheat (usually happens if you trigger it more than 10 times within a minute), the flash will turn off automatically to prevent a malfunction. It will turn itself back on when it's cooled down sufficiently.

In slave mode, this flash can be triggered by the light coming from other speedlights. Useful if you need several light sources.

This flash has an ISO hot shoe that works with Canon Digital EOS, Nikon, Olympus, Panasonic, Pentax and most other DSLR cameras. Although it's a good idea to double-check if it's compatible with your camera in terms of voltage.

This flash is very powerful, as indicated by the guide number of 190 at 100 ISO. It adjusts to the ever-changing lighting conditions automatically with the TTL mode. It can be activated remotely, giving you a lot of freedom in terms of placing the light source. The wireless triggering distance up to 50 ft. is easily the double that of an average flash in this price range.

Although this flash is priced near the bottom of the pricing range for speedlights (they can be as expensive as $500), it has an excellent build quality. It can survive being dropped to the ground without getting a scratch.

This speedlight is fast at regaining its full power, so you don't need to wait that long after taking a picture to take another. The recycle time is only 3 seconds at full charge, while many more expensive flashes take as long as 5-6.