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

Preliminary report results

Preliminary report results

This is preliminary report
Fun with CFL or UV light bulbs and electronic balast

Fun with CFL or UV light bulbs and electronic balast

Here we will talk about powering those light bulbs with dc "ballasts" or better say DC power supplies or converters.
Fix for bluetooth audio amplifier board XH-M314 TPA3118 2x45W from China

Fix for bluetooth audio amplifier board XH-M314 TPA3118 2x45W from China

The purpose of this article is to help audio enthusiasts, who decided to buy bluetooth audio amplifier board XH-M314 TPA3118 2x45W from China. It was not designed properly and as it seems I found the fix.
Calculator for battery run time for Lead Acids batteries

Calculator for battery run time for Lead Acids batteries

This is a simplified battery capacity calculator for Lead acid batteries is using the Peukert's law.

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