Our daily lives can hardly move forward if we did not have lighting. Lighting makes us feel safe and secure and we have really got used to getting it just by flicking on a switch.

The extent to which we are affected by power cuts shows us how dependent we are on electricity to provide us light and other amenities. We use light in various ways and for a lot of facilities.

Today light fixtures come in a multitude of models to suit our taste and the ambiance we wish to create in our surroundings. The usual source of lighting in our homes and offices is electricity and overhead lamps.

But we also have mobile sources of lighting such as flash lights which are powered by batteries. Given the growing scarcity of electricity and our increasing power needs, not to mention the importance being given to protecting the environment, the world’s focus is now turning towards solar power which is clean as well as plentifully available.

All we need to do is to incorporate the solar power lighting technologies that are available and we can have lighting both indoors as well as outdoors. In the long run you can save both money as well as the environment.

Indoor Lighting

Once you have installed a solar power lighting source, you can light up your home and garden easily. You need not change your wiring or the bulbs that are already in use. All you need is a few hours of uninterrupted sunlight to create the electrical energy. Solar light installations are relatively easy and cheap to maintain.

Your most important investment would obviously be the solar panel to collect energy from sunlight whose size will depend on your lighting needs. Today there are lots of solar panel manufacturers for every kind of requirement. Solar installations are popular in farm houses and barns.

Once you tap the required amount of energy with the help of your solar panel, you can enjoy uninterrupted lighting within and outside the house without worrying about cost or pollution or any other issues.

Outdoor Lighting

There are plenty of options available for this. You store up energy during the day and have well lit roads and gardens at night in a most clean and inexpensive way. As already mentioned, there are innumerable manufacturers offering a wide variety of options to light roads, pathways, pools, gardens, etc. using LED colors and accessories to meet your landscaping needs.

There are plenty of proud home owners who love to display their beautiful landscape at night with colorful and imaginative lighting. Solar powered lights are most ideal given their cost efficiency and the myriad varieties that they come in.

From the view point of installation too, solar lights are really great. You just need to find a spot that receives a lot of sunlight and the rest is really easy. The usual solar lighting includes a stake that is fixed to the ground and the solar light is mounted on top of it.

The cheapest ones are made of hard durable plastic and the more expensive ones will be constructed of stainless steel and glass. If at all there is a disadvantage, solar lights may not offer as powerful an illumination as electricity powered lamps. But the benefits far outweigh this one small disadvantage.

Solar powered lamps are very soothing to the eye and they are also stylish. Your initial investment can easily be recovered in no time and in the long run you get power at almost no cost thanks to the low maintenance costs and freely available sunlight.

To do most of the technical works around our home a cordless drill is very essential. To do works like fitting curtain rods, constructing a platform or fence, doing electrical wiring or installing a shelf in a room, you need drilling holes and driving screws.

If you were to visit Sears, Wal-Mart, Home Depot and Lowes, you can see about 20 various kinds of cordless drills hanging on display. How would you choose the right one for you?

In the last two years cordless drills have changed a lot and the latest model features, small sized, with powerful motors and quickly chargeable lithium-ion batteries. Most of the drills now are having only half of the size and weight of those used before two years ago.

Your father or husband won’t have a different opinion, because the cordless drills will do exactly the work what you expect them to do. Even if you work whole day with these drills, they provide you extra energy to do any hard job without getting tired. Size, torque, speed, batteries and clutch are the five important units of capacity of a quality cordless drill. It is expected to pay $80 to $100 for a quality 180inch/lb subcompact cordless drill.

$150 to $220 for a quality 320-400inch/lb compact drill and more for a quality 500inch/lb full size cordless drill.

The latest model cordless drills are smaller in size than those of a year ago. The new subcompact lithium drill weighs 2 lbs, where as an equivalent Nicad powered drill of two years ago weighs 5.2 lbs. These are easy to hold and portable to any difficult site. These new drills have lights in them allowing you to see inside of any rooms under normal conditions.

Latest drills are easy to put in your kitchen drawers. Torque or rotational force is the actual power (not battery voltage) of a cordless drill. This torque is rated in inch/pounds and it is the measurement which decides your choice of purchase according to the task to be done.

For most of the drilling, screwing and repair tasks around home, a 180 inch/lbs is adequate and for most home construction and remodeling works a 320 inch/lb is suitable. You consider a higher torque full size one only if you required to set a lot of lag bolts while building a deck, to drill holes in concrete or a large specialty attachment like a bulb auger.

Before purchasing a cordless drill take note of its specifications on the box or go to the manufacturers website to see the torque numbers. New lithium powered drill has two or more variable speed settings. Normally a 0-600 rpm, which is used for drilling large holes, driving large screws and precision works and a 1-1600 rpm model is used for drilling small holes, counter sinking and setting of smaller screws.

While using your drill start with the low speed setting and then switch to the higher speed when the task got tamed. Gradually you can work accurately with the higher speed. When you purchase, go for a multi speed drill since single speed drill is slow and poor in quality.

A cordless power drill is an electric drill, which utilizes rechargeable batteries for all drilling jobs. These drills have similar features of AC mains-power drills. They are available in the hammer drill pattern and most of them have a clutch. There are also right angle drills, which permit a worker to drive screws in a narrow space.

The most popular types of batteries used in power drills are nickel-cadmium (Ni-cad) batteries and lithium-ion batteries, with each holding half the market share. While Ni-cad batteries have been in use for quite some time and are less expensive, they have more disadvantages compared to lithium-ion batteries.

The disadvantages of Ni-cad batteries are limited life, self-discharging, and ecological problems on disposal. On the other hand, lithium-ion batteries are getting more popular these days in view of their short charging time, longer life and low weight.

Lithium-ion batteries weigh just half that of nickel-cadmium batteries For example, if someone holds a 18volt lithium- ion battery powered cordless drill and a 18 volt Ni-cad battery powered cordless drill one in each hand, he will immediately observe a major difference in weight, with Li-ion battery powered cordless drill being much lighter.

The power output remains constant until the battery gets drained out; it is this feature that nickel-cadmium batteries lack. For example, instead of charging a tool for 15 minutes of use, 15 minutes of charge can run the tool for an hour. This makes the tool more adaptable.

Lithium-ion batteries also retain a charge for considerably longer time than the nickel-cadmium batteries, the charge lasting as much as one year. When comparing two cordless power drills, one should compare drills with similar power.

While a 12volt Ni-cad battery has the same power as a 12 volt Li-ion battery. However, one cannot expect the same torque seen in an 18volt Ni-cad battery powered cordless drill as in a new 12 volt Li-ion cordless driver.

Cordless power drills are known these days as “drill drivers” instead cordless drills. The clutch equipped in cordless drill driver regulates the amount of torque exerted.

When the preset resistance has been attained, it separates the drill’s drive shaft producing a clicking sound. The correct setting of the clutch is important as it helps in driving the screw correctly into the layers without damaging them, besides not stripping the screws. While comparing different cordless power drills, it is also essential to verify the number of clutch settings each drill driver has.

When comparing different cordless power drills or drill drivers, one will observe that most of them have key-less chucks. They are firmly tightened manually so that no chuck is loose. Key-less chucks are normally 3/8 inch or ½ inch.

There are also small cordless drills having key-less chucks that take only quick connect bits. The most essential aspect one should consider when buying a cordless power drill is how one feels holding the power drill driver in the hand. Is it very heavy to hold? Is it too heavy to work overhead?

Whether can one hold it straight without tipping up or down? In other words, the type of battery used in a cordless power drill determines its quality, versatility and durability.