ELF (Electronic Light Flash) by CIGMA Magic

ELF, a miniature flasher with high illumination, will alert your audience to be impacted by your following effects. Created to be a branch of Cloud 9 System, ELF has common plug hole with Cloud 9. So the two products can be triggered by shared switches. With extra pins installed, ELF outnumbers all the other flashers, because several of them can be connected all together in a row to shoot extremely bright attack. ELF can be stronger when equipped with EAC Set in Cloud 9 System. Four customized switches working on different principles are contained in EAC, waited to be armed and fired. 

Online instructions.