Eureka Clip-On Light Blub Whether you can’t find something in your bag or need some extra help finding the keyhole in your front door, light the way with this convenient Clip-On Light Bulb. Complete with a carabiner clip to attach to your keys, handbag or belt loop, this light bulb has a simple pull cord to switch it on and off with ease whenever in use. The bulb illuminates with a white light ensuring you can see whatever you need. A great gadget and a lovely Christmas stocking filler or Secret Santa present for your friends, family or colleagues!