PDA

View Full Version : MH lights


Cal_stir
11-13-2013, 09:58 PM
Can I use single ended MH reflectors without the lens?
Does the lamps outer glass block the UV?

Aquattro
11-13-2013, 09:58 PM
yes and yes

Cal_stir
11-13-2013, 10:00 PM
Thanks and Thanks :biggrin:

lastlight
11-13-2013, 10:17 PM
if splashed the bulb's casing can shatter and still operate... really nuking the tank's inhabitants. The shield offers some more insurance but will also reduce PAR some.

Cal_stir
11-13-2013, 11:34 PM
if splashed the bulb's casing can shatter and still operate... really nuking the tank's inhabitants. The shield offers some more insurance but will also reduce PAR some.

Yes, that could be a problem, I'm going to try to get some tempered glass that is not UV rated.
Thanks for the input.

Aquattro
11-13-2013, 11:44 PM
I ran mine for a couple years with regular glass, no issues at all.

Cal_stir
11-13-2013, 11:51 PM
I ran mine for a couple years with regular glass, no issues at all.

Cool, they are 250W Lumenmax2 and won't be enclosed in a hood so shouldn't get too hot.
Thanks for that.

Rogue951
11-14-2013, 12:53 AM
if it's not actively cooled, a 250 watt will get hot... lol...

Aquattro
11-14-2013, 12:55 AM
Cool, they are 250W Lumenmax2 and won't be enclosed in a hood so shouldn't get too hot.
Thanks for that.

I ran 3 x 400w in Lumenarcs in a hood. They were fine. Yes, they get hot, so don't touch them :)

Cal_stir
11-14-2013, 01:03 AM
I ran 3 x 400w in Lumenarcs in a hood. They were fine. Yes, they get hot, so don't touch them :)

I like to go with experience, even tempered glass can break.
Thanks Brad