Pencil Module Large Painted extruded aluminum fixture Satin opal polycarbonate diffuser Impact resistance (IK07) and salt spray resistance (1500h) Rechargeable and replaceable lithium battery packs Battery lasts 8 – 58 hours, depending on the luminous flux setting. Rechargeable with a 3.5/1.3 connector (NOT INCLUDED), or by contact (when used with the charging base) Recharging times at 3.16A: 6/9/12 h (for small/medium/large size respectively) 3 color temperature settings: 2700, 3150, or 4000K