how much light does window tint block?

[Vanessa]

Most of the windows in my neck of the woods (SW Florida coast) are tinted to keep homes cooler. does anyone know the percentage of light they block?

Also a friend gave me 2 light set ups that use two 48' 40 watt Agro Brite lights in each. Can I substitute T 8's or T5s...or won't they fit? Thank you for your help.

[Ray]

I'm sure the tint varies all over the map, probably ranging from 30% to 50%, possibly greater. You must also understand that - depending upon the material used - the reduction might not be uniform across the spectrum.

[PAorchidman]

Unfortunately, there are too many unknown variables to give you an accurate answer. Without knowing what type of tint was used, if it is application specific ( full spectrum, uvblock, etc. ) Nowadays, you can get tint that is for blocking vision, but blocks zero percent light. if an average home window tint was used, you're liikin at 30%light and about 45%UV

[Ross]

Originally Posted by Vanessa

Also a friend gave me 2 light set ups that use two 48' 40 watt Agro Brite lights in each. Can I substitute T 8's or T5s...or won't they fit? Thank you for your help.

They won't fit.

[Vanessa]

Thanks guys for some darn quick answers.

[PAorchidman]

no problem. anytime

[Ross]

Originally Posted by Ross

They won't fit.

I should have said, you can get 2 and 4 tube t8 fixtures from Home depot pretty cheap. I would recommend t5, but they are much more expensive. The 4-tube t8 will work just fine but you need to set the lights closer to the plants.