Your Hat has "LIGHT" for 1000 Uses! High Intensity Illumination Hands Free Enjoy the convenience, fun and safety of always having a quick source of light in an instant. Slim unobtrusive 4 ultra bright LED lights are cleanly mounted in the brim edge of your everyday camouflage cap. Green lights are for blood tracking, switch rotates between Green or White or all four. Powered for 30 hours by flat coin batteries you won’t even know they are there, with simple concealed brim switch! Powered with slim coin size batteries, easily changeable, cleanly folded away in the hatband. Expect a full 30 hours of battery life, quickly turned on by a button switch concealed underneath the brim. Match + and – signs when replacing batteries in each holder. Two #2032 coin batteries power the LEDs. LIMITED LIFETIME WARRANTY on Light Workmanship. Dealers Inquire