Comments on: LeDio LED spotlight 7W and 21W: PAR values and first impressions

By: mike

mike — Mon, 15 Mar 2010 08:05:35 +0000

if u notice where the sensor is , its in the dull spot so if its measuring high in that area in the brighspot has to be much much higher

By: Hubert

Hubert — Sun, 08 Nov 2009 13:57:50 +0000

these might be perfect to replace those viper MH lights over nanotanks. How much is the ccoverage?

By: Jon 'hahnmeister'

Jon 'hahnmeister' — Fri, 06 Nov 2009 08:14:41 +0000

You could get those readings with only a 1 watt LED at those distances as long as the focus of the optics was narrow enough. Point readings tell nothing compared to grid testing since the output might be intense, but only light a very small area.

By: Mike

Mike — Thu, 05 Nov 2009 23:25:49 +0000

Absolutely Bob, in my reply I was not meaning to say these are useless, in fact I’ve seen quite a few really nice tanks with some really good spotlights used rather than whole tank lighting. Some people appreciate the uniform lighting look, others want it a bit more dramatic.

By: Bob Andrews

Bob Andrews — Thu, 05 Nov 2009 19:15:39 +0000

I am also appreciative of getting some comparison to T5, halide, etc. with LED with depth, etc. We currently try to cover the entire tank. In my tank, the front 25-30% is free space for fish to swim. I could possibley cut back with these and “spot” the areas that need the light for photosynthesis. We’ll see as they become more readily available.

By: Mike

Mike — Thu, 05 Nov 2009 17:50:51 +0000

Finally some actual data to compare with what’s out there as far as fixtures!

However that being said, while the 21W module does have more PAR as read as the ATi T5 fixture, that fixture is over the whole tank, putting enough of these LEDs to cover 4 feet of tank would most likely get quite expensive.

By: Jake Adams

Jake Adams — Thu, 05 Nov 2009 17:09:36 +0000

thanks for writing up about these awesome lamps, taka. They look really well built and bright as hell. Let’s hope the intensity of these lamps lasts a long time, I’ll try to stop by and take a look at them in person in the next few weeks.