Upgrading the underhood light

Has anyone mounted this unit in the rear cargo area?
Since it's plenty long enough to make it to the front, I am considering leaving the stock gravity light in the front and mounting this unit in the rear and triggering it with a plunger style door pin switch. I have no light in the cargo area and have a Tuffy rear security deck, so no interior light can make it out back.
Thats an awesome idea! I have a security trunk too. And no light. Ill have to look on enay for one.