Burn Time: 7 Hours Lumens: 72 Watts: 4.8w Length: 28.57cm Power: 4 x C Cells = Intrinsically Safe Torch Certificate History Manufactured after 1st Jan 2007 Ex ib e IIC T3 IP50IEC Ex TSA 06.0021X Manufactured between Sep 30, 2004 to Dec 31 2006 AUS Ex ia s Zone 0 IIB T3 IP50 Cert# AUS Ex 03.3905x