Diamond Plus The Green Force® Diamond is an outstanding example of a backup torch. Equipped with a nearly indestructible LED and a Lithium battery which maintains its capacity for 5 years, this backup torch will never let you down. It'll burn at 100% for 180 minutes after which it'll slowly go out over a period of 6 hours (enough to allow one to read his instruments). The Diamond can also be used in combination with the Arrow 6. The Diamond Plus is also available as a DIR torch which is equipped with a battery pack that has a central fixing point.