I bought an Oval OV-3 light for walking Duke at night. It is great. It uses LEDs and so is really easy on batteries. Click the switch once and get the headlight, click again and get the headlight, the down-facing lights so you can watch your footing, and a flashing red tail-light to warn off traffic, click again and you get the headlight and tail-light without the "footing" light. Click again, and it's off. I ordered mine from LL Bean because it is fairly expensive, and Bean's return policy is the most generous on the planet, just in case I didn't like the light. It's fantastic. Well-sealed so you can use it in the rain, and the handle is roomy enough for gloved hands for winter walks. I had tried using an LED shake-light, and an LED head-lamp, but neither covered the bases well. This light does.