I've given up using Chemical Lights on night dives

For the following reasons:

- Single use
- Limited life
- Can be accidentally activated
- Need to be properly disposed of following a night dive

Now replaced with 'YO ZURI' Japanese fishing LED lights that:

- Are reusable
- Only activate upon contact with water
- Offer 1000 (one thousand) operating hours
- Stop flashing once contacts dry
- Offer a (brighter) flashing light in a choice of Blue, Green & Red colours

These LED's can be purchased from most retailers selling fishing tackle. I suggest you opt for the larger three and a half inch long LED offering one thousand operating hours, rather than its smaller (seven hundred operating hours) counterpart.