Welcome to VisBis
VisBis is the subsidiary of Luminatek company in the business of helping other companies develop
products. Our engineers have many years of experience in a wide variety
of fields. We now concentrate on helping other companies
engineer their power needs--batteries, power supplies, inverters and D.C. to D.C.
We not only engineer products, but
we also manufacture products both in Utah and in China. This helps our
customers and keeps us in lasting, long term relationships with both our
customers and our factories. We are truing to be cost effective and sell our products to smallest mark up. Very often we modify our existing products to your needs. For our buyers from North America, please go to Powerstream website.
Please note that some countries have changed their
standards, and some have multiple standards. This is not absolute
knowledge, but rather for references only. Normally outlet standards
heavily regulated by safety authorities in each specific country.
acid chemistry is fairly tolerant of overcharging, which allows
marketing organizations to get to extremely cheap chargers, even sealed
lead acid batteries can recycle the gasses produced to prevent damage to
the battery as long as the charge rate is slow. We offer a range of
This is a simplified run-time calculator to estimate the run-time of your loads for Li batteries. You need to know: a. Battery capacity in mAh (mili Amp hours) b. Load currents in mA.Please
note 1Ah=1000mAh and 1A=1000mA. So if you have large car battery with
20Ah capacity, then put 20000&n