Roma has developed a small E17 LED Light Bulb

Roma has developed a small LED bulb "LDA4L-G-E17" can support E17 lamp holder, compare with the original LED bulbs such as 12 volt LED lights, new products reduce the size of the power part, the shade of the hemispherical shape is more nearly spherical. LED light source module use the COB construct without mirror, the shape almost identical to  old-fashioned small krypton bulb to achieve 180°light distribution angle.

Prior to the disadvantage of small LED bulb is less luminous part of the light distribution angle narrow, dark horizontal and supply side. The brightness of the new product is equivalent to a 25W mini krypton bulb. The shade is made of the proliferation of Roma self-developed material that can be issued does not point to the warmth of light. The bulb the total luminous flux of 265lm, the power consumption of 4W. The light color than incandescent light color. Design life (the luminous flux dropped to 70% of the initial time) is approximately 40,000 hours. Pricing is open, expect the actual price of less than 2000 yen.

By the way, I konw where to buy the LED lighting such as LED light and best led flashlight at low price,

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Resistor Colour code convertor

This page tells you how to download and use the colour code convertor program
Click to Download
Internet Explorer will respond with a dialog box. You can decide whether to save the program to disc and run it later, or to open it straight away. Either way, there may be a further dialog box, giving dire warnings about downloading software from the internet. (DOCTRONICS knows of no problems with the program, but no guarantee is implied.)
The colour code convertor can be copied and distributed freely, but remains copyright ©. Distribution for profit seems unlikely, but is expressly forbidden.
The program was written using Borland Delphi 2.0.

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How to use the program

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1. Finding the resistor value corresponding to the colour code:
Hold your resistor with the tolerance band (usually gold) at the right hand end:



Within the colour convertor program, click on the FIRST DIGIT drop down arrow to see the choice of colours:

Notice that black is not available as a choice for the first digit colour.
Click on green. The focus moves automatically to the drop down list for the SECOND DIGIT, where you select blue in exactly the same way:

The focus moves again, this time to the MULTIPLIER drop down list where you select brown. As soon as you click the brown, the focus moves to the convert button, and the resistor value, 560 ohm, appears immediately in the result box.
When you select resistor colours in this way, the result appears automatically, without clicking the convert button. However, if you change only the first or second digit colour, without changing the multiplier colour, you will need to click convert to initiate the conversion process.
Note the effect of clicking on the ohm, k and M radio buttons. The colour code for 560 k is given, but 560 Mis outside the normal range of resistor values and generates an error message.

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2. Finding the colour code corresponding to a particular resistor value:
Suppose you want to find the colour code for a 390ohm resistor. The program allows you to do this in two ways. Clicking on the drop down arrow next to the result box gives a list of E12/E24 values from which you can select by scrolling through:

Once you have selected 390 from the list, click on the ohm radio button:

As soon as you click to select ohms, the display changes to show the correct colour code, in this case:

As an alternative, you can enter a number directly in the result box. Numbers with two significant digits are allowed, that is, 1.2, 12, 120, but not 121 or 473. If you want to know the code for 1 200 ohms, enter 1.2 and click k. Incorrect entries, or numbers which do not correspond to E12/E24 values generate appropriate error messages.

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3. Tolerance.
Tolerance refers to the percentage accuracy of the resistor value. Most resistors have a gold coloured tolerance band, indicating an accuracy of ±5%, but other colours are possible and can be selected from the drop down list.

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4. E12/E24 values.
Resistors are manufactured in values which correspond to the E12 and E24 scales. Details are given in the Resistors Chapter. The program indicates whether a particular value is included in both scales, or is an E24 value only.

Back to Resistors

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The Details About How To Purchase The Car Accessories Online

Shopping online has been widely recognized, and become the main way of shopping by many people.
Usually difficult to buy or spend a lot of time to buy things through the Internet can easily set your favorite products, avoid shopping on the road of fatigue, avoid the bargain of the tedious, one-step cash on delivery!
you need to know what the name of the object you want before buying Car Accessories , detailed models, can accurately find the product you need.
I want to teach you is to buy online:
Step one: Open a support page online to buy auto parts.
Registered as a normal user, just fill in login user name and accurate information can be. Click here to say, registration information inside the cell phone number must be correctly completed, the next state to buy accessories can receive SMS delivery, as well as the most important thing is to account if you lose the phone number is your only way to recover password ! Because the site is a registered contractor, so do not worry about the risk of selling customer information.
Step two: Click on the upper right corner shop page "login" button.
In the login page, enter the information just registered "user name" "user password" "verification code" (we are regular users, so do not need to fill out the "User Code"), click on the "ordinary user login" to enter your e- business.
Step Three: Click the top right corner of e-commerce interface "to apply for senior customers."
(Tip: Due to advanced users is the artificial certification upgrade, so the efficiency is low, waiting for the certification period, anxious to buy accessories for friends should be very depressing. Confirmation click on "apply to become a senior account" after we return home, provided us with the Home Online customer contact staff! told him to subscribe to it! play their telephone service can also be urging the opening!) this time we will use a mobile phone, the application is successful, it will be a member of code! Advanced user login is required
Step four: repeat step type "User Code", "username", "User Password" "authentication code", do not forget the user code just made! Click the "Advanced Login" (We are an advanced user, of course, are an advanced user login!)
Self-help e-commerce system into parts inquiries! (If you do not understand the necessary accessories, you can call directly to a salespersons description of accessories to get the parts code, the phone display at the top, or online customer service on the home page to find a solution!).
I want to buy a Corolla front fog lights box. Then in the "cars, manufacturer name, vehicle name, year of manufacture, displacement" field in which the information filled in their own vehicles, because I do not know the parts code directly in the "Part Name" entered above "box before the fog lights" (Even the name is not recognized, then the customer can only ask!)
See the search results, RH and LH appeared in two, to see that, and a left and right, as that is an accessory unit, is certainly a little bug.
The selected accessories to buy, click to the selected parts.
Submit a shopping list on it!

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Multifunction LED lamps

Japan Twinbird recently introduced a very interesting portable LED lamps. The whole body is made from light material, which can create a weak and warm atmosphere and can also be temporary to use as a "lantern" , it is very interesting. This lamp provides two operating modes, including color temperature of 6700K and 2700K color temperature, the machines power consumption is only 0.5W, built-in battery capacity of 700mAh, can last up to 25 hours. But it is not the cheap led light bulbs, converted into U.S. dollars about $155 or so, although it is very interesting, but this price is a bit expensive!

It can also provide background lighting on the bed at night.

Three gear, this is the most bright

This is the medium brightness.

This is the lowest brightness. It is the best choice as a kids night lights.

Normal mode look, the whole body use the optical materials, thus it appears to be white and is not transparent color.


If you want to urinate at night, you can also hold the top of the lamp, the bottom will light into white light, he effect is almost exactly the same as lanterns.

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