Aogist 100pcs White Balloon Light, Long Standby Time Waterproof Mini Ball Light, Round LED Flash Ball Lamp for Paper Lantern Balloon Party Wedding, Festival Christmas and Halloween Decorative (White)

These are perfect! They're bright and last a long time. The only dilemma is that there's no way to turn them off. So, they can only be used 1 time. But they are more than worth the cost.

These are so cute and last long. I put them on a decorative table and they were still lit days later

These lights were very bright and the light lingered for a few days after my event. I used them with some dark balloons and it definitely didn't have the full effect, so I recommend light colored balloons and a night time event to really make it pop. My biggest concern and why I won't be re purchasing is that after my event I let my kids play with the balloons and they were shaking them around and twice the balloons popped and the light burst apart throwing plastic and the 2 button batteries across the room. Button batteries are extremely dangerous for children if injested. After carefully deflating the balloons with the lights in them I noticed multiple lights were split apart, probably because of being kicked or something. If these lights will be used in a stationary capacity it would be fine, but absolutely should not be in balloons that will be handled a lot.

Ok, but these are super cool. We used them for an at-home NYE balloon drop and they were PERFECT! Pop them in balloons before you blow them up, turn off the lights and you have a full on party. Super fun, cheap addition to any "glow in the dark" themed event! Easy to activate and well worth the 2 seconds it takes to pop them in the balloons! Battery life was also crazy long and they were lighting up well into the next day!