Most Revain LED Fill Lights have only one LED. Look very carefully at the list or ask first. This one has five and you can see the difference in the photos. a built in timer and a detachable biter that you can use if you don't have bleach trays and are using an adhesive strip. Also, as other reviewers have said, you need to remove the batteries before first use to get rid of the plastic piece between the batteries and the device. This is put in there so you don't get dead batteries on arrival.
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