Looking for an old 400w SE bulb

[denverhoss]

Just want to test a ballast I got off ebay. I picked up a Lumatek 400W that has the selector for 250, 250SE, 400, and 400SE. I checked it with a Lux meter and a Kill-a-watt, while using an old 250w bulb. There was no wattage or Lux change going from 250 to 250SL(Super Lumens). The bulb did flicker so I know the setting changed when I turned the knob. The vendor says I won't see a change until I use a 400w bulb, which I don't have yet. This doesn't sound right to me. I can see why I can't/shouldn't turn it to 400, but I'd expect it to run a few extra watts through the 250.

Anyway... If somebody has an old 400w single end bulb for cheap sale or as a loaner I'd appreciate it. I'm in the Denver/Aurora area.

Hoss

 

[LooseHip]

If you want to come to arvada I have 3 you are welcome to take and try. Free!

 

[denverhoss]

Even my wife would be happy with that price! Thanks!

 

[es1887]

if you didnt get em i got 2 you can have

 

[derekmacias]

I have an old radium you could have.

 

[derekmacias]

I'm in SE Denver Iliff and Parker.

 

[denverhoss]

I did find a bulb, thanks for all the offers. And thanks to amonchak for a used 400w bulb to play with.

I posted some of the results for the Lumatek 400w and 250w Select-a-Watt units. My only goal in the tests was to compare total power consumption at different settings and the proportional change in lux, so don't take the lux or lux / watt numbers as consistent between tests or as the max / optimal output. Maybe when I get bored I'll set those tests up again and record some proper readings from the same location each time. I might even go borrow a PAR meter instead of my cheap lux meter, but then again I'm still not convinced that a meter designed for pine trees tells me EXACTLY what my corals can use. I'm getting really cynical in my old age...

http://www.reefcentral.com/forums/showthread.php?t=1944060