RING LED Pocket Lamp - Brand New. From the Ring Essential range comes the 8 LED Pocket Lamp. The ultra bright lamp that produces 40 lumens of light. Use 3 x AAA batteries (not supplied). Compact design similar to a pen it is only 16cm in length and has a useful magnetic pocket clip. Easy to use & store. Product Dimensions: L 16.00 x W 2.8 cm. Super Quality - Super Value.