Have you got anything white or silver that you can use instead of the black tubing? You'll get a lot more reflected light, effectively making the LED brighter. You can always run some black tape round the outside to stop external light ingress.
Have you got anything white or silver that you can use instead of the black tubing? You'll get a lot more reflected light, effectively making the LED brighter. You can always run some black tape round the outside to stop external light ingress.