Measures 8" x 5" x 2 1/4". A case and light in one. Yellow heavy duty composition case that floats and is dust and water proof with locking latch, integrated hanging hook and carabiner. Three pre-set LED light output levels plus a signaling mode. High- 200 lumens, 4h runtime; Medium- 100 lumens, 12h runtime; Low- 20 lumens, 80h runtime. Uses four AA batteries (included). Hang packaged.