A $5 solar lamp that could help save the environment — and lives — all the while enabling school children in East Africa to study was a sales pitch that Fr. Patrick Sheedy, an Irishman accustomed to ...

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We tend to think of outdoor lighting as a necessary evil. A means to avoid tripping, or to fish out your keys from the depths of your bag. But lately, outdoor lighting has taken on a more performative ...

Here is the simple solution to make an automatic solar powered led lamp. It automatically switches on two high power White LEDs in the evening and stays on for 6 hours using a 6 volt 4.5 Ah ...

Looking for a lamp that won’t fail you during blackouts? Here are five rechargeable lamps with powerful features and extended battery life. Having a good-quality rechargeable lamp is, quite frankly, ...

Japanese scientists have analyzed storage systems that combine PV and high-energy-density metal batteries. The rechargeable batteries have advantages such as low-charge voltage and high energy density ...