Originally Posted by Old Gammy Leg
...one on my bike, on on my backpack...
Have you asked a friend to view the one on your backpack while you are leaned over in your usual riding position. I see lots of commuters with a blinkie in the middle of their backpack and it is slightly visible when they are leaned over the handlebars.
I think a halogen is more visible than an LED. I have two NightRider halogen headlights and a flashing 3 LED light onthe front. The
flashing LED is just to get the attention of approaching motorists.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.