Energy Efficient Black Lights: Ultraviolet LEDs

LED flashlights are now available in the ultraviolet frequency range. These flashlights have the same longevity and durability of other LED lamps. Some of the ultraviolet flashlights on the market are the Inova X5 Ultraviolet (made with anodized aluminum) and the hefty Streamlight Twin Task. You can see many other types listed on this page.

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Berkey Light Gravity-Flow Water Filter

Gravity filters are more effective than other types of water filter, because the water drips slowly through the ceramic elements, and this process removes almost all the contaminants in water. The filters can be cleaned with a toothbrush and last for up to 2,000 gallons. This Berkey Light filter uses Black Berkey elements, and they […]

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