Maverick Flourescent Grill Light is Stainless Steel and Battery operated for use outdoors; 18" adjustable neck; Large 1" mouth; stainless metal mounting clip; 4 AA batteries included. This handy portable light uses a standard 5 fluorescent bulb and 4 AA batteries (all included,replacements readily available) to provide convenient lighting anywhere. Energy efficient and cool fluorescent conserves power. Typical life 2-3 hours continuous, a whole summer with intermittent on/off operation. Clip the light onto any shelf up to 1" thick and bend the gooseneck to the desired angle. Stainless Steel housing and mounting clip, useable rain or shine.