Binay Opto Electronics Private Ltd. Manufactures Industrial Type LED Indicators. Binay Opto Electronics Private Ltd. Binay Opto Electronics Private Ltd. Also offers LED based pilot lights, aviation obstruction lights, alarm lights, etc. Industrial Type LED Indicators or INDUSTRIAL SERIES Jumbo LED Modules are used for industrial users. This indicator features heat-resistant, flame-retardant thermosetting epoxy/DMC material construction, with a chrome-plated brass bezel for mounting the polycarbonate lens. Its internal fuse provides protection against an accidental short-circuit in the Module. Each Industrial Type LED Indicator undergoes an ageing process for 24 hours at an accelerated voltage of 280V. These are available in variable sizes having the diameters of 22.5mm, 25.5mm, 27.5mm, 30.5mm, and 19.5mm respectively.