1) LED life: 100,000 hours
2) Operated by AG13 battery

bullet shape book light,robit book light

1) LED life: 100,000 hours
2) Operated by AG13 batteries (included)
3) The same shape of 3led light and 1 led light
4) Product size: 8.6 x 60mm
5) Weight: 16.7g.