lights

[fredman]

I have a 20 long and just bought some used pc lights 2x 96 watt x 2 with 18 inch reflectors. Now the questions. these things get hot so how high above the water should they go? They are a retro fit kit so I will install a fan in the hood I will build. can I put them slightly on edge in a v shape?Where to buy new bulbs/four prong type? Thanks Fred

 

[papagimp]

fwiw, PC are the alot cooler than most other bulbs in the hobby, I've never needed fans or anything when running just PC's. Also, all of them are 4 pronged....but you have square pin style and straight pin style...both with 4 prongs. A v shape wouldn't hurt anything but you angle them and may loose a little of the light coming in from the reflectors. My PC over my 20g long sit roughly 4 inches over the tanks edge if that helps.

 

[fredman]

lights

Helps. I didn't go with MH because of the heat. Those get hot. I know that I will lose some of the light by using a V shape but if I use both sets of bulbs in the hood I should have plenty of light. 192watts total.For $60 I am a happy guy. They are square type of pin. Fred

 

[sharko88]

hellolights.com sells those bulbs cheap.

 

[sharko88]

My PCs are only 3 inches above a glass top and they are fine with a fan blowing even in the Texas summer heat. However, since they are retro, I would mount about 6 inches above.