This is the BigBlue Combo Pack AL450NM & AL1800NP & Rainbow EZ Clip Features: Package Weight: 2 lbs Lumens: 180 Lm (Level I), 450 Lm (Level II), 900 Lm (Level III), 1800 Lm (Level IV), 450 Beam Angle: 10Adeg Burn Time: 2 hrs (level IV), 4 hrs (level III), 8 hrs (level II), 20 hrs (level I) Light Source: XML LED Power Source: Rechargeable Li-Ion 26650 Battery Color Temperature: 6500K (Cool White) Maximum Depth: 100 Meters Tested Housing Materia: Anodized Aluminum Alloy Battery Model: BATCELL2665 Charge Time: 5-6 Hours AL1800NP-II: 1800 Lumens at 6500K color temperature A narrow 10Adeg beam angle with a soft edge Four power settings AL450N-II Tail: 450 Lumens at 6500K color temperature A narrow 8Adeg beam angle with a soft edge Tail button switch with battery indicator AL450NM-II Tail & AL1800NP + EZ Rainbow Clip Combo PackThe AL1800NP-II offers great features including the four-level push-button on/off switch, and rechargeable 26650 lithium-ion battery. This is the perfect light for general purpose diving or technical diving.