after several flashlight , pelican , everready , etc. because they stop work in a harsh marine environment , this one flashlight have now be constantly work for 5 year . it be extremely bright and durable . because it have a 12 volt rechargeble base you can secure it to a bulkhead and forget about it . it will always be ready when you need it and always in the same location . that be in and of itself be invaluable on a boat where most thing be cram into the same couple drawer .