MH lights

[Cal_stir]

Can I use single ended MH reflectors without the lens?
Does the lamps outer glass block the UV?

[Aquattro]

yes and yes

[Cal_stir]

Thanks and Thanks :biggrin:

[lastlight]

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]

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]

I ran mine for a couple years with regular glass, no issues at all.

[Cal_stir]

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]

if it's not actively cooled, a 250 watt will get hot... lol...

[Aquattro]

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]

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