Several kinds of solar lights exist. The one discussed here will have a plastic bird, butterfly, dragonfly, or flower ornament perched over the light-emitting-diode (LED) bulb at the upper tip of its three-foot hollow metal-rod stem. For support, this rod is stuck into ground level. Also, the light's circular solar collecting panel (containing the photo-cells) is located about halfway down the rod. During the day, this panel must face the sun for maximum re-charging.
There is really a solution though, the new generation of eco friendly bulbs are light emitting diodes (LED). LEDs may be a completely different technology based upon a solid state circuit making the LED great deal more durable and safe than the usual CFL.
I grabbed the soft white bulb due to it resemblance in order to typical incandescent light. It cost $20, but twenty bucks extended over 15-20 years isn't so bad compared to replacing other bulbs every year or so. What was a bit ironic was the packaging it arrived. LED bulbs are marketed up to efficiency, waste eliminating lamps. Yet, it came in a overly large, plastic clamshell program.
The first thing you prepared to compare is power level. This is always their early thing everyone looks as it immediately tells you ways much power the bulb uses as a result how cost-effective it heading to to be to offer. However, you should stop being led into believing that wattage is indicative of brightness, particularly with low energy led bulb s, while is fail to. It is a measurement of power consumption. The E27 led bulb have got concerned with only uses 5 w. It equivalent incandescent bulb uses 50 watts. The math is pretty simple, this equates for you to some 90 per cent energy cost reduction.led street lights http://www.eneltec-led.com/products/led-street-lights
The prices have also come down for CFLs from the once $25 per bulb (average household bulb) to about $5 for similar bulb this morning. One might think that these the particular light bulbs green people would endorse now. This isn't necessarily the situation.
Right now the problem with LEDs is cost. Currently, you might pay about $25 for an LED bulb to replace an incandescent bulb. Even if the bulb lasts 10 to 15 years and would afford itself in reduced energy consumption, must take this activity still a considerable up front investment. Prices will come down in the future, and then LEDs could possibly bulb of choice.