... are accepted OEM / ODM are welcome. CE ROHS ISO9001:2008 l Light can be continuously flashing, blinking, etc. Flashing duration time ... for: greeting cards, gift package, Promotional gifts, cup, bottle, etc.l Activated: by push, pull-tab (slide), light, voice, vibration, PIR ... harness, switch, more or less for different itemsl Any customize designs are welcome.l OEM/ODM service is available.