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.
converters.
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.
News/Info
This is very simple calculator for wattage characterization of solar panels with No Load(Open Circuit) Voltage (= Vnl) and Short Circuit Current (Isc)
This article is not about resurrecting Li-po cells, but rather how to substitute failed battery with a new one.
This calculator helps to compute current limiting capacitor for low frequency (below 60Hz) AC sources of voltage.
The lead
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
chargers from inexpensive to very sophisticated, depending on the
requirements of the customer, but all of the chargers we sell
off-the-shelf are highly regulated sophisticated chargers that cannot
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