Tab Lampen Reviews

Dear Sirs;
I received the lamp TAB4130 as gift. I used this lamp 3 times and then the lamp began automatically shunting off so often that it was unusable. I liked the lamp so much when it was working that I bought another. This one I was only able to use it for three hours before it began automatically shutting of the same as the first one.
I like the way the lamp is focused and the 140 power, but it is useless if it does not work. If this can be fixed I would like another.
R. King