Lights get dimmer as I add more

[jokerboy]

I am putting extra lights in a home office. It started life with one light and a wall switch. It was wired power in black-to-black of switch then white from power in to black of light and white of switch to white of light. I put 4 lights in series with the same config. Nothing. I tried black of power to white of switch then black of switch to black of light and white of power to white of light. Nothing. Then I hooked just one light straight to black and white and threw breaker, light works fine so I added the switch as was originally wired. Fine. I added another light continuing with the black from one light to black of the next light and then as originally with the switch, it worked but each light was dimmer. I added a third light, dimmer still. I rewired using the second config, black of power to white of next light and so on, the same thing as I add lights they get dimmer. See Diagram.
What am I doing wrong?
thanks,
Chris

[mrcaptainbob]

By wiring the lamps that way, there's a diluting of pwoer for each bulb. Fer intance....110 volts and only one bulb....full bright![8D] Two bulbs at a 110 volts= 55 volts per bulb. Oops...dim bulbs.[B)]as you add bulbs, it'll get dimmer yet. How to fix: connect a white and black from last bulb, to next, to next, to the first (original) bulb. Even if the 'original' has two blacks....(it might, it might not). Now when you throw the switch, you'll be sending power down one wire that's connected to each bulb without having to go 'through' another bulb. Hope that works for ya'!