IK rating

Opal diffuser sheets in PMMA, PS, and PC for uniform LED lighting

May 14, 2026 Indoor LED Lighting Solutions 14 min read

PMMA, Polycarbonate and Polystyrene: Material Guide for LED Diffusers and Optical Sheets

A complete technical comparison of PMMA, polycarbonate (PC), and polystyrene (PS) for LED diffusers and optical sheets. Covers optical transmittance, impact resistance, fire ratings, UV stability, thermal behaviour, and application-by-application guidance to help engineers and buyers specify the right material first time.

IK ratings impact resistance chart for plastics and LED lighting enclosures

November 27, 2025 Indoor LED Lighting Solutions 8 min read

LED Diffuser IK Ratings: How PS, PMMA and Polycarbonate Compare

Learn how IK ratings measure LED diffuser durability — and how Polystyrene, PMMA, and Polycarbonate compare across impact resistance, transmittance, and UV stability. A practical guide to specifying vandal-resistant, UGR<19 compliant lighting for any environment.