WISDOM LAMP 4 Revisited A great Caving Light, especially f one uses the diffuser if they do not like the killer beam of this cap lamp.
Ok So first up I'm going say that this light, the Wisdom Lamp 4 really holds a charge. I haven't been caving in almost 2 months and I thought maybe I had better give the light a bit of a charge op up etc. LOL! No need, I plugged it in and batteries are still fully charged (green light). This is testament to WISDOM using quality Panasonic Lithium Ion Batteries (18650's) inside of this cap lamp, which are obviously slow to discharge over time.
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