The clip LED on the hat brim is invaluable on those fishing trips that start predawn, the slender LED Streamlight spends all my workdays in my shirt pocket and sees constant use it takes 3 AAAA batteries that last a year, the Maglite Solitaire LED is a more recent addition but I've become very fond of it, and lastly the LED on the left is a cheap promo giveaway, but after 2 years it's been bulletproof and with an attached magnet very handy