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Solar Gadgets for Summer

Sonelis Lumileaf Solar LED Lamp Cont’d

The Lumileaf desk lamp works as good as it looks. After charging it up during the day, it ran continuously for more than 13 hours and still was going strong. While operating it stayed cool and the electronics are water resistant so it can be used outside.

It puts out 426 lux at six inches, more than enough to read and work by at night. On the other hand, the LEDS create a bluish white light that is a little too harsh for my taste that many might find objectionable.

On the downside, it won’t work in direct sunlight to keep the electronics from overloading. Flick the switch and the LEDs briefly flash and go out. It’s a time when you probably don’t need any extra light in any event.

You don’t need the full glare of noontime sun to charge it, either. It charges from daylight indoors and even from everyday interior lighting. A big problem is that it lacks even the most rudimentary battery gauge to show how much power remains. In other words, it’s always a guess whether it will light up or not. Fortunately, it did every time I tried.

At $60, the Lumileaf lamp is a bargain. Because it requires no electricity, it can pay for itself in a year and a half of ten hours of use a day compared to a 100 watt desk light. After that it’s a freebie.

Pros
Cons
Attractive Design
Doesn't Work in Direct Light
Great for Reading
No Battery Gauge
Six LED Illumination

Ten Hours on One Charge

Final Score: 4/5

http://sonelis.com/concepts.aspx

$60