... with auto fadeStrobe intensity: Blackout - maximumSpecial effects: Ramp up, ramp down, ramp up-down, random flash, lightning, spikes, blinder, single flashDetonator ... synchronization toggle switch4. No external power necessary5. easy set-up and operationFeature:Warning: This product is for professional use ... question, please do not hesitate to contact me. Hot sell and good quality 3000w strobe light