challenged the design company
to develop an L.E.D. lantern for Africa replacing the
financially crippling and dangerous kerosene lamp that so many
developing communities depend on. The product of the work is the
which provides a gentle light for 30 minutes and a more
intense reading light for 20 minutes simply by raising a weight.
The lamp currently costs less than £6 ($10), has no running costs, no battery and nothing to replace. The $10
investment a family makes is recouped in about 3 months without
the need for kerosene. The design team think that in a big
enough production line the gravity light can be manufactured for
as little as £3 ($5).