Two chrysanthemum agriculturist building raw construction this twelvemonth , choose the newPhilips GreenPower leave Toplighting Force(TLF ) fromSignify . These LED brightness fit seamlessly into hybrid systems with 1,040 - James Watt HPS lights and propose high-pitched end product and efficiency . Linflowers from Nieuwaal ( 7.5 hour angle ) opts for gamey efficiency with the TLF received ray of 2,750 µmol / s. U - Grand from De Lier ( 10 ha ) opts for maximal output with the TLF stock beam of 3,600 µmol / s.
The TLF lights introduced by Signify in former spring are almost the same in size as the Toplighting Compact ( TLC ) lights . However , the TLF lights put up a higher output ( 2,800 to 3,600 µmol / s ) and ditto mark efficiency ( up to 3.7 µmol / J ) , coupled with the prove dependability of Philips light engineering science . Compared to the TLC , growers can reach a higher light level for the same wattage , or they can choose to install fewer illumination for a similar light degree .
" We did not have any experience with light-emitting diode ourselves , but what I have visualize and heard from the TLF gives us a mint of confidence . This also applies to stand for . They carry out many visitation in chrysanthemum cultivation in recent years and also have a hatful of pragmatic experience originate chrysanthemums on a large plate under LEDs , " says Jeffrey van Uffelen on behalf of U - Grand , a joint venture of Van Uffelen Flowers and Michel Grootscholten ’s MG Grand Nursery . " We get along well and share the same vision . This project allows us both to maturate and memorize from each other . We are also assume a step forward in term of finish technology , especially in lighting , " adds van Uffelen .
Highest outputLED installation mate Stolze will install as many light-emitting diode as HPS sparkle in U - Grand ’s new greenhouse in September . The LEDs deliver 128 µmol / m2 / s , the HPS alight 70 . Van Uffelen : " 200 µmol with LED and HPS is no longer an exclusion in chrysanthemum culture . This allows you to achieve a higher plant denseness while fully maintaining quality . As a consequence of the light distribution and the high output of the TLF - 3,600 µmol / s - we require relatively few lights , while the light level is still very homogenous . That is a laborious necessary in chrysanthemum cultivation . "
Maximum efficiencyThe Van Tuijl crony of Linflowers prefer more or less different spec . For their new nursery at the Darolin I place , they choose for TLF lights with an output of 2,750 µmol / s , offering a maximum efficiency of 3.4 µmol / J. They chose a spectrum that includes far - red light next to red and blue .
" In trials , we incur that with some additional far - flushed light you necessitate few micromoles to develop branches with the want duration and weight , " explains David van Tuijl . " This allows us to efficiently increase plant denseness . We also experience that the take spectrum gives a wider cultivation range . By that , I mean that almost all diversity respond very well to it . Without that little bit of far - scarlet light , this mental faculty has a gamey output ( 2,850 µmol / s ) and is more efficient ( 3.7 µmol / J ) but you may guide into limitation sooner . "
A precondition for Linflowers ' lighting plan was the desire to stay within the available wattage based on the CHP and purchasing . The most efficient TLF with 2,850 µmol / s output came out slenderly more favorably in that paying attention . This hybrid organization also delivers 200 µmol / m2 / s , split up into 120 for the TLF LED and 80 for the HPS visible radiation . Stolze from Maasdijk will be responsible for the installation .
