For some reason, I’m always interested in why things are called what they are. For example, I’ve been compelled in the past to research what Absorbine Senior is. Not that it is important, but ...

Many of us store a flashlight around the house for use in emergency situations. Usually, regular alkaline batteries are fine for this task, as they’ll last a good few years, and you remember to swap ...

With this circuit, any type of LED can be driven from a single-cell supply in the range of 1.0 to 1.5 V (see the figure). As a result, it can be used with alkaline, carbon-zinc, NiCd, or NiMH cells ...

THE DPG-1AA HEAVY-DUTY ALUMINUM LED FLASHLIGHT uses Xlamp LED bulb technology to produce an extremely bright, white light. It uses power efficiently to extend battery life, and its reflective cone ...