Big Blue's HL-450 LED Head Light provides a full 450 lumens via 1 XML LED and an 8/85 degrees beam.
The light highlights beautiful ambient colors during diving.
There are 4 different lights and SOS, as well as a battery indicator. The 4 different lights levels give you 4 different output levels - IV at 100%, III at 50%, II at 25% and I at 10%, which reduces battery usage.
The lamp uses 3 AAA batteries.
Strap included.