Bought 3 of these torches 1 lasted a week before not turning on. Although you can still power 2 out of 3 bulbs by winding the handle continuously (goes out when you stop). The middle bulb does not work. The other two are still working but they went very dim after 3 weeks. Despite having this torch on the window sill all day in very bright sunlight. I brought these torches after my brother brought another solar torch back from holiday. This is still very bright and working. The torch mentioned can be found here: Merchandising SOLR FL Infinite Solar Flashlight As these torches are so unreliable I didn't want to go through the hassle of exchanging them. I have a strong feeling that they will also fail.
I'm going back to using using my Unicom wind up torch which can be found here: Uni Com Wind Up Silver Torch 57871
I have had this for at least 2 years and it is still nice & bright.