The Cornwell Quality Tools blueION Rechargeable Penlight, No. CBI3020, features a brightness of 235 lm on high and 55 lm on low. It has a run-time of 50 minutes on high and 3 hours on low. In addition, the penlight offers a strobe mode, is able to charge in 45 minutes via a micro USB, and has a IPX5 rating. The penlight measures 4" in length and .6" in diameter. It includes the battery, micro USB cable, and carry strap.