Cov khoom rov qab yuav txais tos hauv 40 hnub thaum yog hnub tau txais cov khoom. Cov khoom tsim tsis tuaj yeem rov qab lossis hloov. Cov khoom yuav nrog e-gift card yog hloov xwb; rov qab tsis raug.
Tsoom dawb
Zoo siab txais tos rau Roymall, koj lub professional website yuav premium department store tsoom. Peb ntsuas thiab txaus siab rau koj kev pab, thiab peb xav qhia peb lub siab ua tsaug los ntawm ntxiv qhov zoo nkauj rau koj cov kev yuav khoom. Thaum koj yuav khoom nrog peb, koj tsis tas yuav tau cov khoom zoo thiab ua kom koj lub neej zoo dua, tab sis koj yuav tau txais ib qho tsoom dawb nrog txhua qhov kev yuav khoom. Npaj los nrhiav peb cov khoom thiab nrhiav koj cov tsoom zoo? Nrhiav peb cov khoom xaiv, sau koj qhov kev yuav khoom, thiab nqa koj lub siab rau kev zoo siab thaum koj cov tsoom dawb tuaj nrog koj cov khoom.
Kev soj ntsuam
Peb yuav ua haujlwm hard kom soj ntsuam cov khoom rau koj tom qab tau txais koj cov kev yuav khoom thiab ua kom lawv mus kom zoo. Cov lus qhia soj ntsuam yuav muab rau koj hauv koj daim email confirmation.Hauv feem ntau, cov kev yuav khoom yuav raug kho hauv 2 hnub.Hauv cov xwm txheej tshwj xeeb, nws yuav raug delay raws li no: Thaum koj sau ib qhov kev yuav khoom hnub Saturday, Sunday lossis hnub so, nws yuav raug delay 2 hnub..Feem ntau, nws yuav tsum 5-7 hnub ua haujlwm (Monday mus Friday) tsis raug cuam tshuam los ntawm kev delay lossis lwm yam environmental factors..Vim peb cov kev soj ntsuam yog worldwide yog li cov sij hawm soj ntsuam yuav sib raug rau koj qhov chaw uas yog li nws yuav tsum tau ob peb zaug thiab thov ua siab ntev yog koj nyob hauv zej zog lossis lub teb chaws.
1. Kev rov qab & hloov chaw
Peb tsuas yog txais cov khoom yuav los ntawm roymall.com. Yog tias koj yuav los ntawm peb cov khoom lag luam lossis lwm cov khoom yuav, koj tsis tuaj yeem rov qab lawv rau peb.Cov khoom kawg lossis cov tsoom dawb tsis txais tos rau kev rov qab.Kom muaj peev xwm rov qab, koj cov khoom yuav tsis tau siv thiab nyob rau hauv tib yam li koj tau txais lawv. Nws yuav tsum nyob rau hauv cov pob txha original.Tom qab tau txais cov lus qhia rov qab los ntawm peb, thov pob txha koj cov khoom rov qab thiab coj koj cov pob txha mus rau lub chaw hauv pob lossis lwm tus neeg soj ntsuam. Peb yuav kho koj cov khoom rov qab lossis hloov chaw hauv 3-5 hnub ua haujlwm tom qab peb tau txais nws. Kev them rov qab yuav raug kho thiab automatically them rau koj qhov kev them nyiaj ua ntej.Tsis muaj kev rov qab lossis hloov chaw yuav raug txais yog tias cov khoom yog tsim custom, suav nrog custom ntev, custom color, lossis custom sau ntawv.Xav tau ntau ntxiv pab, thov hu rau peb. service@roymall.com lossis Whatsapp: +447549870296
2.Kev them rov qab
Koj yuav tau txais tag nrho cov nyiaj rov qab lossis 100% store credit tom qab peb tau txais koj cov khoom rov qab thiab tshawb xyuas nws. Kev them rov qab yuav raug kho thiab automatically them rau koj qhov kev them nyiaj ua ntej.Thov nco ntsoov tias cov nyiaj soj ntsuam thiab cov nyiaj fees tsis yog rov qab. Cov nyiaj soj ntsuam ntxiv tsis yog rov qab thaum cov pob txha tau soj ntsuam lawm. Koj yog tus neeg ua haujlwm rau kev them cov fees no thiab peb tsis tuaj yeem tso tseg lossis rov qab lawv, txawm tias koj cov kev yuav khoom rov qab rau peb.Thaum peb tau txais thiab paub tseeb tias koj cov khoom rov qab, peb yuav xa koj ib daim email kom paub tias peb tau txais koj cov khoom rov qab. Peb yuav qhia koj txog kev txais lossis tsis txais koj cov nyiaj rov qab.Yog tias koj muaj teeb meem nrog kev them rov qab, thov hu rau peb. service@roymall.com lossis Whatsapp: +447549870296
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Description:
The high voltage module uses for Tesla coil principle produced, it output high voltage pulse high voltage current, small volume, high efficiency, simple peripheral circuit (simply connect the switch, the battery can be) The intensity of discharge violently.
High voltage pulse type: high and low pressure integral Output voltage: about 800-1000K volts (please note security when using it ) High voltage bipolar discharging distance: 10-20mm The output high voltage line length: About 100mm The input power cable length: About 100mm (red for positive)
About power supply: can use lithium battery 3.7V two series, such as 18650 battery, mobile phone battery idle (to remove the protection board, proposed capacity in 2000mAh above) or NiCd / NiMH batteries, 4V or 6V lead-acid battery etc. This module is the science of small production use high voltage inverter transformer / booster finished product module,input DC4.8-7.2V voltage at the output end get 500000 volts of DC high voltage (arc about 1-2 cm), can be used as a high school science laboratory,electronic instrument, negative ion generator, science making use of high voltage source.
Notice:
This item cann"t Short circuit,cann"t exceed 2cm Arc(1-1.5cm is normal). Can"t work for long time ,can only work Intermittently. Improper operation can make the item broken very easy.