General living room with 20-28W energy-saving lamps, bedroom child with 15-20W is enough. The Op brand hanging lamp with three primary colors, quality, where we are very popular. The best 30-watt energy-saving lamps good results is the circular light scattered fairly large effect is very good, I am now at home with. Energy-saving lamp wattage like a big point, you said how much watts, which is hard to say, I do not know that you need to have is what kind of effect, on the whole, the big point on the highlights of

Solar lights, can be widely used in the dressing for lawns, squares, parks and other occasions, and belongs to the field of lighting technology. The main use lampshade connected bottom bracket, the battery plate is placed on the battery box, built in the lampshade, a battery case mounted on the bottom bracket, the light emitting diode is mounted in the battery panel, solar panels using wire connecting the rechargeable battery and a control circuit. One utility model structure is simple, compact and reasonable; no external power supply line, easy installation, beautiful appearance; placed in the bottom bracket, light-emitting entire lamp body is illuminated, better sense of light due to the use of light-emitting diodes; All electrical components built, with good usability. The solar-powered device to play with extra interesting. The flash will not let you down, solar let this stuff years! Flash circuit includes a rechargeable nickel-cadmium batteries. When the sunlight on the solar cell array converted into electric energy; current through the diode, and simultaneously supplied to the rechargeable battery and bulb flash device. In the daytime, i.e. illumination case, the charge and the electrical energy for the flash device; stored in the electrical energy supply in the night, that is after the stop of the light from. Only when a long time without the light so that the battery power is exhausted, this means that stops working. As shown, an ordinary light-emitting diode (LED) are controlled by an integrated circuit LM3909. The LM3909 has repeatedly turned on and off development diodes do not need all of the circuitry. 220μF capacitor is the LED blinks timing capacitor. A more simple flash device CQX21 flashing light-emitting diode can be used, all of the components needed by the flash are completely placed on the inside of the light emitting diode. CQX21 instead LM3909 in the Figure, the capacitor and the light-emitting diode. In short, when Sunlight solar-generated electricity supply circuit to work. Removed from the circuit rechargeable nickel-cadmium battery, the device only in sunlight or lights and battery only. On the other hand, if you just want a battery-powered, remove the solar cell and diode can. Can be any size and color of the light-emitting diode. Between the diode and the battery can access up to 12 flash unit.

Use of solar buildings, continue to emerge, both beautiful and practical. A passive solar house, the sunny side of the wall is black, wall mounted sealed glass frame to make it with the form a channel-like space between the exterior wall. Sun to sun heat the air in the channel, the hot air rises from the top of the valve into the interior, the indoor cold air heating but also by the lower part of the air vents into the channel, this endless cycle, room temperature continuously improve. Summer, as long as the top of the valve is opened to the outside, the hot air flows to the outside to go, so houses north of the colder air constantly into the interior, and reserve outflow of hot air at room temperature followed the decline. This sun room, as long as there is good insulation materials, design reasonable, will be able to receive a cool effect. Solar water heater collector box, the principle of the structure are similar, they are mostly installed on the roof, to add to the splendor of modern architecture. Recently abroad and the development of a new type of glass tile, its main raw material is silicon. The tile itself is solar energy storage device, it is not only in the sun to produce electric current can be generated even in rainy weather, the current can be used for indoor lighting.