TranscendL

4 ms·

1.
by TranscendL 11y ago
Thanks! It is possible. We are coming out with a new LED T5 lamp where we can easily customize the output spectrum. It would be fun to work together to find out the ideal spectrum.
2.
by TranscendL 11y ago
It will be interesting to see how the market scales. There are certainly advantages to large commercial greenhouses etc... but there is a quickly growing trend for small local producers that grow a few hundred or couple thousands plants at
3.
by TranscendL 11y ago
Yes, we lose there is energy losses from Stokes shift. For example, when we shift from a high energy blue photon to a lower energy red photon we lose the difference in photon energy as heat. Blue LEDs are approx 55% efficient and red LEDs 3
4.
by TranscendL 11y ago
That's a great idea. Etendue shouldn't be too much of a concern because we are emitting onto a relatively large space. We hadn't considered using a BEF but will certainly look into it. Someone else mentioned using a holograph
5.
by TranscendL 11y ago
It turns out that plants use more than just red/blue for photosynthesis. They do indeed absorb narrow bands of red/blue more strongly than other colors like green (this is why plants are green) but only absorb about 10% more effic
6.
by TranscendL 11y ago
We build our own remote phosphor components and in some cases source components from companies like Intematix. We have a solid "side business" where we formulate and produce custom remote phosphor components for non general lighti
7.
by TranscendL 11y ago
We don't have spectral tuning functionality at the moment but it's something we are working on. A number of customers growing fruiting/flowering plants have asked for this sort of spectral control. For non-fruiting plants the
8.
by TranscendL 11y ago
Yes, it has been tested. The industry standar LM-80 lifetime testing of the LED shows an L70 lifetime of ~300,000 hours. We are operating the LEDs at a lower temperature meaning they should theoretically last even longer. This is how we spe
9.
by TranscendL 11y ago
Phosphors are interesting in that they emit in 360 degrees. We have a "recycling cavity" behind the phosphor plates that reflects "backward" emitting photons. The design of this cavity is key to an efficient remote phosp
10.
by TranscendL 11y ago
The numbers are heavily influenced by cost of electricity and time of use. Payback ranges from 1-5 years with an average user seeing payback in about 3. Average 600W HPS lamps are 1.0-1.3 µmoles/watt. A complete fixture consumes 660 wa
11.
by TranscendL 11y ago
The major difference is upfront cost vs. cost of ownership. If you purchase the "cheap" multi-color products you will end up consuming MUCH more energy. The difference is much more than the upfront cost of the lights. There are so
12.
by TranscendL 11y ago
I'm Brian, the founder of Transcend. Each light is 19 pounds and is about 10"x8". There are two reasons the light is the size that it is. First temperature. We have a passive heat sink with fins and a plastic remote phosphor