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

Solar panel calculator if you know the dimentions and the material.

Solar panel calculator if you know the dimentions and the material.

Calculations based on simplified formula for solar panel power: Pout = η ⋅ G ⋅ (X ⋅ Y)
 Calculator for Pmax solar panels with No Load Voltage (= Vos) and Short Circuit Current (Isc)

Calculator for Pmax solar panels with No Load Voltage (= Vos) and Short Circuit Current (Isc)

This is very simple calculator for wattage characterization of solar panels with No Load(Open Circuit) Voltage (= Vnl) and Short Circuit Current (Isc)
Solar panel real Power Calculator for different Latitude

Solar panel real Power Calculator for different Latitude

This Calculator allow you to obtain real power output P for different Latitude for your solar panel

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