Tag nrho Spectrum EMC 3030 LED rau kev loj hlob teeb
Kev ntsuas siab siab kawg nkaus (ntawm TA =25degree)
Parameter | Cim | Kev ntsuas | Chav tsev |
DC Forward Current (正向电流) | IF | 450 | m A |
Peak pulse Tam sim no (脉冲电流) | IFP | 900 | m A |
Lub zog Dissipation (功率) | PD | 1.5 | W |
Rov qab Voltage (反向电压) | VR | 5 | V |
Rov qab tam sim no (反向电流) | IR | 10 | μ A |
Kev khiav hauj lwm qhov kub thiab txias (工作温度) | TOPR | - 30 ib 75 | degreeC |
Cia qhov kub thiab txias (储存温度) | TSTG | -40 Ib., 85 | degreeC |
LED Qhov Kub Kub (结点温度) | TJ | 120 | degreeC |
Cov yam ntxwv hluav taws xob / kho qhov muag --Dawb (Ntawm TA=25degreeC)
Parameter | Cim | Cov xwm txheej | Min | Avg. | Max | Chav tsev |
Forward Voltage （正向压降） | VF | IF=300mA | 2.80 | -- | 3.40 | V |
Thermal Resistance Junction Rau Board （热阻） | RΘJ-B | IF=300mA | -- | 8 | -- | degreeC/W |
Luminous Flux （光通量） | Φv | IF=300mA | 150 | 160 | lwm lm | |
Xim kub （色温） | CCT | IF=300mA | 6000 | 6500 | K | |
CRI （显色指数） | Ra | IF=300mA | 80 | -- | -- | -- |
Kub Coefficient ntawm Forward Voltage （正向压降之温度系数） | ∆VF/∆T | IF=300mA | −− | -2 | −− | mV/degreeC |
Rov qab tam sim no （反向漏电流） | IR | VR=5V | −− | −− | 10 | μ A |
Saib lub kaum sab xis 1 （发光角度） | 2Θ1/2 | IF=300mA | −− | 120 | −− | Deg |
Cov nyhuv ntawm LED lub teeb zoo ntawm cov qoob loo tsim, nplooj nplooj photosynthetic pigment thiab bud sib txawv:
Cov nyhuv ntawm LED teeb zoo rau lub paj ntawm cov qoob loo. Nws tau pom tias muaj 5 qhov sib txawv ntawm cov noob-coded phytochromes (PhyA-PhyE) hauv Arabidopsis. PhyA thiab PhyB tsis tsim nyog rau flowering induction, tab sis lawv muaj kev koom tes nyob rau hauv cov kev cai ntawm flowering lub sij hawm. PhyA yog overexpressed nyob rau hauv cov nroj tsuag kom tawg ua ntej, thiab PhyB ncua sij hawm flowering ntawm cov nroj tsuag. PhyA koom nrog "cov lus teb tsis tshua muaj hluav taws xob tsawg" thiab lub teeb liab nyob deb "siab hluav taws xob teb riam phom, thaum PhyB koom nrog "tsawg hluav taws xob teb" thiab lub teeb liab "siab hluav taws xob teb". paj, thaum lub teeb liab lub teeb plays lub luag hauj lwm inhibitory, ib txhia neeg tau kawm txog cov nyhuv ntawm lub teeb zoo ntawm paj bud sib txawv los ntawm cov yam ntxwv ntawm nutrient mov thiab lwm yam. lub teeb Lub paj bud sib txawv thiab paj kev loj hlob ntawm chrysanthemum muab cell qauv Cheebtsam thiab lub zog Nyob rau hauv no kev kho mob, tus naj npawb ntawm buds thiab tus naj npawb ntawm paj ntawm ib tsob nroj ntawm chrysanthemum yog ob qho tib si siab tshaj cov kev tswj.
The effect of LED light on the formation of photosynthetic pigments in leaves. Photosynthetic pigments can absorb, transmit and convert light energy, and are the material basis for photosynthesis of plants. Its content and composition directly affect the photosynthetic rate of leaves. LED blue light can promote the formation of chlorophyll in hyacinth callus, while red light reduces its total chlorophyll content. Compared with pure red light, when red light is mixed with blue light, yellow light and orange light, respectively, the promotion of chlorophyll synthesis in sorghum, cucumber and sorghum leaves is weaker; when blue light is mixed with other light, these three kinds of light The promotion of plant chlorophyll synthesis is relatively large. It is also believed that this effect of mixed light is due to the fact that when pure red light or pure blue light is mixed with light of other wavelengths, the content of phytochrome in the activated state changes, and the activation of cryptochrome is also different, which causes a variety of different Biological effects. Chlorophyll a is an important photosynthetic pigment, it can transfer the absorbed light energy to the photosynthetic chemical reaction center. Blue light can increase the chlorophyll a content of a variety of algae plants, so plants cultivated with LED blue light generally have higher chlorophyll a/b values, while plants cultivated with red light have lower chlorophyll a/b. Carotenoids are auxiliary pigments of chloroplast photosynthetic antennas, which can receive light energy from the moderator chlorophyll. Studies have shown that LED light quality can affect the carotenoid content of coffee leaves, especially the synthesis of different types of carotenoids. Compared with white light, yellow light, red light, and blue light all reduce the carotenoid content of lettuce. Red light can reduce the carotenoid content of hyacinth callus.
The effect of LED light quality on the differentiation of crop buds, and the effects of light of different wavelengths on crops inducing bud formation are different. As underground buds, the occurrence of small bulbs and protocorms of lily and tiger head orchid does not depend on light quality, while the adventitious buds of African violets and variegated crabapples as ground buds and above-ground buds, LED red light has a promoting effect, blue light Tobacco has an inhibitory effect against darkness; blue light is beneficial to the formation of adventitious buds in tobacco, while red light and darkness have an inhibitory effect. Short-wave light can promote the growth of tobacco buds at a lower intensity, while long-wave light needs to be at a higher light intensity to promote buds.
The effect of LED light quality on plant seed germination and root growth:
Cov nyhuv ntawm LED lub teeb zoo nyob rau hauv germination ntawm cov nroj tsuag noob. Thaum cov noob nqus dej, lawv cov germination feem ntau cuam tshuam los ntawm lub teeb. Kev cog qoob loo ntawm lub teeb-thov cov noob yog koom ua ke tswj hwm los ntawm PhyA thiab PhyB. Kev txhawb nqa ntawm LED teeb liab ntawm cov noob germination yog tswj hwm los ntawm PhyB. Lub luag haujlwm tseem ceeb ntawm PhyB yog kom nkag siab cov kev hloov pauv hauv qhov piv ntawm R / FR. Txawm hais tias cov noob tuaj yeem loj hlob tuaj thiab loj hlob yog txiav txim siab los ntawm R / FR piv ntawm lub teeb nws tau txais tom qab. Qhov qis R / FR piv txwv tsis pub germination ntawm cov noob. Cov noob dib tuaj yeem germinate nyob rau hauv lub teeb xiav ntawm LED, tab sis tas li irradiation ntawm lub teeb liab inhibits germination ntawm dib noob. Raws li lub teeb pom kev zoo uas tuaj yeem txhawb kev loj hlob, kev ua haujlwm peroxidase hauv cov noob yuav nce ntxiv nrog lub sijhawm, thiab ua kom ruaj khov tom qab cov cotyledons tau qhib: nyob rau hauv lub teeb pom kev zoo LED uas inhibits germination, cov kev ua ntawm peroxidase hauv cov noob yeej ib txwm tswj tau ntau heev. qib qis.
Cov nyhuv ntawm LED lub teeb zoo rau kev loj hlob ntawm cov qoob loo hauv paus. Hauv cov nroj tsuag tshuaj ntsuab, lub teeb tuaj yeem dhau los ntawm lub teeb pom kev hauv ib puag ncig thiab raug tswj los ntawm photoreceptors los ntawm hauv av mus rau cov hauv paus hniav thiab tswj lawv txoj kev loj hlob thiab kev loj hlob. Txawm hais tias lub hauv paus system tsis ncaj qha tau txais lub teeb bar, nws teb txawv rau cov teeb pom kev zoo sib txawv. LED xiav lub teeb muaj txiaj ntsig zoo rau kev loj hlob thiab kev loj hlob ntawm cov cag ntoo. Lub teeb xiav tuaj yeem ua rau cov hauv paus muaj zog, tag nrho thaj chaw nqus thiab thaj chaw nqus dej ntawm cov nroj tsuag. Irradiating cov qoob loo cog qoob loo nrog LED xiav lub teeb, nws pom tias cov ntsiab lus ntawm cov protein ntau nyob rau hauv cov hauv paus system ntawm cov yub yub yog siab, qhov tsis yog - cov ntsiab lus ntawm cov protein nitrogen tsawg, qhov piv ntawm cov protein rau nitrogen rau tag nrho. nitrogen yog siab, thiab tag nrho cov ntsiab lus nitrogen kuj siab, qhia tias lub teeb xiav LED tuaj yeem ua rau cov hauv paus nitrides ntawm cov noob nplej. Synthesis thiab zus tau tej cov protein nyob rau hauv lub hauv paus system. Tam sim no, kev cog qoob loo raws li LED xiav lub teeb cuam tshuam ntawm cov hauv paus qoob loo tau siv los ntawm cov neeg tsim khoom.
GMKJ muab ntau xim sib txawv 3030 smd coj ntawm no:
Tag nrho Spectrum SMD LED 3030 2835 1 Watt Chip package size:
Hais txog Guangmai LED / GMKJ LED
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