Customized Keychains & Keylights, COB Flashlight Keychain - LED & Dual-mode, Let your brand light up the room when you gift customers this Chip On Board (COB) Flashlight Keychain. With its long lasting LED light and two settings (high or flashing) this flashlight will find those missing glasses buried deep in purses, the right key on your keychain, and tout your brand recognition like an eternal flame. ... #FA22807 $3.24/each.