Hybrid consists of 4 battery packs and 5 LED light heads.Most packs can be equipped with different sources (cells) of power supply, therefore called Hybrid.
Battery Packs: -
H2, H4, H8 and H12
The H stands for Hybrid, the number for the amount of batteries the casing can hold.
H2 is a rechargeable pack with 2 lithium cells.
H4 can hold 4 Alkaline cells or 4 NiMh rechargeable cells.
H8 can hold either 8 Alkaline cells, 8 NiMh rechargeable cells or a 10 cell pack from 12V/2Ah.
H12 is designed to take 12 Alkaline Cells or 12 NiMh rechargeable cells.