This is a nice, sturdy built lamp. The leds are visible even in daylight. Very easy to mount, although it takes some time to do it properly. It provides with good enough length of cables to install the brake light sensor on the rear brake.  It provides with a good load sound horn that will capture any ones attention. .

Specification
Dimensions: 5.12 in x 1.89 in x 1.89 in
Weight: 8.11 oz
Package includes
One kit per box.
Batteries are not included