In the LED lamp, 3x1W white LEDs are wired in series. Each 1W LED has a forward drop voltage of about 3V and draws current upto 260mA. This LED network is connected to a small circuit board populated ...

The 1W LED used produces about one hundred lumens. It’s arguable that the LED lumens can be collected more efficiently, so the total brightness onto the object and up the eyepiece is going to be ...

Figure 2 Not surprisingly for a 7W light, the bulb uses seven 1W LEDs. The gray pad serves as a thermal conductor between the PCB and the heat sink. Figure 3 The dimly visible dark specks are the tiny ...

He includes two interesting demos. One is that by attaching the flickering LED to a BJT he can turn it into a current amplifier and successfully drive a much more powerful 1W LED with the same effect.

A new crop of LED light bulbs wants to combine modern technology with old-school looks. Here's what to look for as you pick one out. What to know before you buy vintage-style LED light bulbs - CNET ...

How we chose the best LED lights for your TV to improve your home entertainment experience. QLED, OLED, Mini LED … you’ve thought a lot about the backlighting technology in your TV.