This blisteringly bright, super small key ring torch is quite literally blinding! It is barely larger than a small door key and will give you real power in your pocket. The 3 x .22 lumen LED bulbs are powered by 4 super long lasting lithium batteries (included), making it the brightest torch in its class. It has been crafted from aircraft grade aluminium and the LED bulbs are designed to last for over 100,000 hours. it has a simple scew on/off action, and has strong, water resistant 'O' rings to protect against water. You will be amazed at the sheer light output of this little beauty. Warning - Do not shine in eyes.