Fangrui Product Details 1. Triopo Tr-15ex Macro Ring Ttl Flash Light With 6 Different Size Adapter Rings For Canon E-ttl(black) 2. Features 3. 2.9 Seconds High Speed Recycle Time And Support Led Assist Lamp, Not Let You Miss Very Weonderful Moment 4. Multiple Flash Mode: Ttl Auto Flash For Convenient Operation As Normal Auta Exposure, Multi Flash Mode And Rear Curtain Sync For Shooting A Moving Object 5. Flash With Adjustable 8 Grades Flash Brightness, Design For A Complete Picture With Paticular Subject And Accurate Exposure 6. Dot-matrix Lcd Display With Backlight Mode, Can Achieve Easy Adjustment For Clear Night Photography 7. Compatible With Canon Reble (t5i, T4i, T3i, T2i), Eos 700d 650d 600d 550d 70d 60d 7d, 18-135mm Ef-s Is Stm, Ef-s 17-85mm F4-5.6 Is Usm Lenses. 8. Specifications 9. Model: Tr-15ex 10. Camera Type: For Canon Camera: E-ttl 11. Power Supply: 4 X Aa Size Batteris(alkaline Or Ni-mh Batteries, Not Included) 12. Guide No. ((iso 100): Gn14 13. Number Of Flash (full Power: 11): Approx 450 Times 14. Ms1s2 Mode Control Flash: 1128~11 15. Rpt Mode Control Flash: 1128~14 16. High Speed Sync Mode: 132~11 17. Recycle Time: 0.05~2.8s 18. Color Temperature: 5600k+-200k 19. Flash Duration: 1300s - 110000s 20. Flash Trigger: 3.5mm Pc Sync Hole, Optical Control, Test Key, Wireless Control Plug 21. Illuminance Full Lux: 440lux (0.5m)