E27 3.5-4.2W 72 LED 3500-4000K Warm White Light LED Bulb HA003 (110V)

Specifications: 

• Light Source: 72 LED
• Output Power: 3.5-4.2W 
• Interface Type: E27
• Working Voltage: 110V
• Luminous Flux: 250-290 lumens
• Color Temperature: 3500-4000K
• Size: 119 x 38mm / 4.7 x 1.5in (H x Dia.)

Features:

• This E27 Light Bulb comes in warm white or cool/commercial white color temperatures
• Super E27 Light Bulb is suitable for home, office and exhibition lighting
• The White LED Bulb is widely used as down lighting or accent lighting in shops, offices and home
• Bathroom Downlights are brighter than normal bulbs
• White LED Light Bulb is high performance upgrade bulb
• You can install the E27 Light Bulb within minutes
• Great for everyday home or commercial use
• This is a high power Super Bright LED Light with a long lifespan
• This bulb is widely used and it is suitable for home, restaurants, hotels, offices, architectural and art gallery lighting
• With this White LED Light Bulb, you will feel the atmosphere become more comfortable and romantic
• White Light Spotlight LED Light Bulb will result in money saved by lowered utility costs
• E27 Light Bulb is energy efficient and use extremely low watts
• Seismic, impact resistance, non-thermal radiation, safe, stable and reliable  

 Details:

• With this White LED Light Bulb, you will feel the atmosphere become more comfortable and romantic

• Great for everyday home or commercial use

• White Light Spotlight LED Light Bulb will result in money saved by lowered utility costs

• This bulb is widely used and it is suitable for home, restaurants, hotels, offices, architectural and art gallery lighting

How to choose a LED Bulb?

Here are a few things to consider when choosing LED light bulbs:

Efficiency:

• Manufacturer's claims vary wildly about the efficiency of LEDs and can often be quite misleading. The simplest way to ensure that you are comparing "like with like" is to look at the efficiency in Lumens per Watt. That is, how much light do you get for each Watt of electricity used. Today (early 2010), LEDs that are in production range in efficiency from about 20 to 60 Lumens per Watt. New developments should increase this to around 80 or 100 Lumens per Watt over the next few years. This compares with around 10-15 Lumens per Watt for old-fashioned incandescent lamps and 50-100 Lumens per Watt for fluorescent tubes

Colour Temperature:

• Early LEDs were mostly a very much higher colour temperature (ie a bluish light) than the typical 2700K colour temperature of a warm white incandescent lamp. This has led many people to think that LEDs gave a "cold" light. LED technology has however advanced a great deal in the last couple of years and some types of LED are available in a range of colour temperatures from warm white (2700 or 3000K) up to daylight (6000K and beyond). LEDs with a higher colour temperature do however tend to be slightly more efficient than those with a lower colour temperature so some companies offer these as a way of making their products seem brighter. To replace standard incandescent or halogen lamps, a colour temperature of around 2700K to 3300K is preferred. Some companies use non-standard terms when describing the colour of LEDs such as "natural white" or "office white" which cannot be readily compared with other products. To ensure that you are comparing like with like always check the colour temperature

Colour Rendering:

• The colour rendering of LEDs varies quite markedly between brands. For some applications this is not particularly important but for ambient lighting it is important to check the quality of light emitted. The LEDs that we offer for ambient lighting all have good colour rendering, comparable to that of a good quality fluorescent tube. Many manufacturers do not however quote a colour rendering index for their LEDs so we are rarely able to quote specific figures

Heat Output:

• LEDs give off relatively little heat but do run reasonably warm and often incorporate a heat sink to dissipate any excess heat and maintain the LEDs at optimum operating temperature. Compact lamps such as miniature spot lights can thus still get reasonably warm whereas larger bulbs and candles certainly cool enough to touch when operating

Rated Life:

• The one area where LEDs really score highly is in their rated operating life which typically ranges from 20,000 to 50,000 hours. This is 20 to 50 times longer than a typical incandescent lamp so LEDs are ideal for use in areas where maintenance is difficult or long life is important

How to Clean Up a Broken LED Bulb?

• Put on leather gloves to protect your hands from glass or plastic shards. Prepare your trash bags by placing one inside another--double-bagging can prevent shards from poking through. If the bulb was very small, use plastic sandwich bags
• Sweep up larger shards of the bulb using a hand broom and a dustpan. Dump the bulb shards and metal components into the trash bags
• Tear off a strip of duct tape about six inches long. Press the adhesive side lightly to the surface where the bulb broke. This will pick up small pieces of glass that the broom left behind
• Use a hose attachment on a vacuum cleaner to suck up the rest of the bulb particles, if necessary. If the bulb was very small, as many LED bulbs are, this might not be necessary (unless fragments are in carpeting)

How to Replace a LED Light Bulb?

• Find the type, size, and color of LED bulb that you are looking for. As mentioned before, there are hundreds of different types out there and it may be difficult for you to find the exact one you are looking for. If that is the case, you may want to take your burned out bulb to your local hardware store to see if they can point you in right direction for a replacement
• Remove the old bulb carefully so you don't break it. Normally a screwdriver will be required at this point because LED lights are normally encased in something. So start by removing any encasing there is. Be sure to keep the screws that you removed however, you will need them when you put the case back on
• Read the manual for your particular LED light. Many LED lights can simply be pulled out, but other have certain ways that they connect more securely. You will need to know what kind you are dealing with, don't guess. Find the manual or instructions on your new bulb and remove following those directions
• Replace the old bulb with the new LED light. The new bulb should go in just like the old one came out. You will want to test the light before you put the encasing back on to make sure everything works and the light is the same color
• Replace the case that was over the LED lights and make sure the casing is secured tightly

The LED Bulbs Effects:

• The LED bulbs give bright light and save money from cost utility

• Light up your stair and reduce stumbling at night with these amazing LED bulbs

• Power saving and long life-span LED bulbs are perfect for 24/7 constant use

• The LED bulbs for both main and moonlight illumination are possible

Colour Temperature:

• The photos below were taken in a dark room, without pre-setting the camera or editing the photos afterwards
• Different colour temperatures of the LED bulbs can be seen on the trim of the terracotta pot and on the cactus
• The first photo the object was illuminated with cool light. The cool light is the brightest
• The second photo natural white was used, it is similar to sunlight.
• The third photo the warm white can be seen, which is similar to the color of tungsten lighting and halogen lights

The Kelvin Scale:

Colour temperature has important applications in lighting. The colour temperature of a light source is usually measured in kelvins (K) at which the heated black-body radiator matches the colour of the light source is that source's colour temperature 

• Higher colour temperatures (5000 K or more) are "cool" (green-blue) color, and lower colour temperatures (2700-3000 K) "warm" (yellow-red) color

Attentions:

• In use, the products must be fully integrated with the lamp holder, so as to avoid loss or being exposed to product flashing occurring
• Please use it in the specified voltage range
• Please be noted that this product is made from frangible materials

Comparison between LED and Incandescent Bulb & CFL:

    

• Luminous Flus & Application Efficency

• Comparing Power Consumption(8hours/day,electricity used in a year)   

• Comparing Working Life-span

• LED is more energy efficient and more environmentally friendly than Incandescent Bulb and CFL, LED lighting is a better option for you

Package Included:

• 1 x Warm White LED Light