View Full Version : led lenses?

09-09-2012, 09:23 PM
what are these lenses for? i see 40, 60, 80 degrees. what does that mean and whats their purpose?

09-10-2012, 01:46 AM
To concentrate light in to narrower beam. Useful if your leds are at a bigger distance from target.

Floyd R Turbo
09-10-2012, 05:32 AM
For display tank lighting. Not for scrubber lighting. Unless your light fixture is far away (12")

10-09-2012, 08:13 AM
Yup.. and also should be mentioned that the narrower the beam tge more par you get. So people with deeper tqnks go with a narrow lens to get light to the bottom. Keep in mind you might need more leds with narrow lenses.

10-10-2012, 04:04 AM
Ye, good morning :D

12-22-2012, 08:52 PM
As long as you keep your display light close to the waterline and dont have a tank much more then 24" you wont need them. Less expense and looks better too.