great light output but POOR DESIGN
I bought this for my daughter for when she walks to and from the bus in the dark hours, she already has a Nextorch E51C but I thought the whistle would give her an extra level of security. Unfortunately the push to go switch that sets of the whistle easily gets pushed if you put it in a bag or pocket, causing several "neglegent whistles" on the bus or in the office. She has lost faith in the torch and already retired the torch to her power cut kit, great idea, dissapointing execution, may be alright if you only use it when dog walking and don't need to store the torch about your person.