Strengthened the design of water proof. The switch pattern: side button.
It can clamp on the brim, meet the need of cap and illumination.
LED life lasts for over 100000 hours, no consideration for changing light.
LED Cap Light 5 LED is new and never used. It is a LED light bulb with a long lifespan.
Can be also used in mountain climbing, night walking, riding, repairing electric circuit.