| Guide Number | 45.9' / 14 m at ISO 100 |
| Recycle Time | Approx. 0.1 to 1 Second |
| Exposure Control | Canon E-TTL / E-TTL II |
| Secondary Illumination | Modeling Light |
| Wireless Operation | Radio (TTL/Manual) Up to 328.1' / 100 m |
| Color Temperature | 5900K |
| Internal Power | 1x Rechargeable, 3000 mAh |
| Lens Compatibility | 49mm/52mm/55mm/58mm/62mm/67mm/72mm/77mm Filter Threads (via Included Adapter Ring) |
| Guide Number | 45.9' / 14 m at ISO 100 |
| Flash Duration | 1/300 to 1/20000 Second |
| Recycle Time | Approx. 0.1 to 1 Second |
| Exposure Control | Canon E-TTL / E-TTL II |
| Power Range | 1/1 to 1/256 |
| Secondary Illumination | Modeling Light |
| Wireless Operation | Radio (TTL/Manual) Up to 328.1' / 100 m |
| Wireless Channels | 32 |
| Color Temperature | 5900K |
| Internal Power | 1x Rechargeable, 3000 mAh |
| Mount | Shoe Mount (Controller), Lens Mount (Flash) |
| Lens Compatibility | 49mm/52mm/55mm/58mm/62mm/67mm/72mm/77mm Filter Threads (via Included Adapter Ring) |
| Display | Yes |
| Off-Camera Terminal | No |
| Dimensions (W x H x D) | 5.1 x 5.1 x 1.0" / 129.5 x 129.5 x 25.4 mm (Ring) 4.7 x 2.7 x 1.9" / 119.4 x 68.6 x 48.3 mm (Controller) |
| Weight | 20.4 oz / 578 g (with Battery) |
| Package Weight | 2.31 lb |
| Box Dimensions (LxWxH) | 9.7 x 9 x 2.8" |