Know What Size Light to Specify for Your Process Vessel

Sight Glass Light Measurement
and Sizing Guide

As LED sight glass lights replace traditional halogen lights, process experts
are wondering how many lumens will provide the right level of brightness.
The answer depends on vessel size, process media, and many other factors.
This guide explains how to measure light and gives specific guidance on what
size light to specify for a sight glass on your process vessel or tank.

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Sight Glass Experts

L.J. Star offers a full line of industrial sight glasses, gauge glass, sight
flow indicators, and related products for chemical and pharmaceutical
applications. Our Metaglas is the #1 selling fused sight glass, proven in the
thousands of installations around the world. Unlike some other sight glasses,
it meets stringent DIN 7070 and DIN 7080 quality standards, and has been
tested and proven to meet The USP Type 1 standard.