Try a glow diffuser maybe https://www.google.co.uk/search?q=flashlight+glow+diffuser&rlz=1C1CHBD_en-GBGB874GB874&sxsrf=ALeKk02LaOt-qM9MKCrNDgfD-yDaC5QFPw:1611827570354&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjvgpTOrb7uAhUATBUIHcf0BwgQ_AUoAnoECAoQBA&biw=1703&bih=1279
Or on other stuff I've used car window blackout vinyl. There's also these things https://www.amazon.co.uk/LightDims-Original-Strength-CoversDims-Different/dp/B009WSJNCW
Sorry missed your reply. Thanks for that.
@hugo7 started
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Try a glow diffuser maybe https://www.google.co.uk/search?q=flashlight+glow+diffuser&rlz=1C1CHBD_en-GBGB874GB874&sxsrf=ALeKk02LaOt-qM9MKCrNDgfD-yDaC5QFPw:1611827570354&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjvgpTOrb7uAhUATBUIHcf0BwgQ_AUoAnoECAoQBA&biw=1703&bih=1279
Or on other stuff I've used car window blackout vinyl. There's also these things https://www.amazon.co.uk/LightDims-Original-Strength-CoversDims-Different/dp/B009WSJNCW