The Oros tech pack includes three strike indicator colors glow-in-the-dark, black/anti-glare and hi-visibility chartreuse.

Black/Anit-glare 

Black strike indicators provide more contrast and are easier to see than other colors in highly reflective lighting situations. We've found that black indicators work well when the sun is lower on the horizon or under overcast skies that are reflecting on the water. For situations where the indicator is moving from water with a dark refection into an area with high glare we recommend putting two indicators on the line, one black and one chartreuse or white. The white or chartreuse indicator is easy to see in the dark area and the black indicator is easier to see in the high glare area. For example, we pared a medium black indicator with a small chartreuse indicator.

Glow-in-the-dark

Glow-in-the-dark strike indicators give you the option to extend your time on the water. Glow-in-the-dark strike indicators help you see strikes better in the arly morning evening and into the night. We have nymphed and dead drifted streamers under glow-in-the-dark indicators with great success. 

Charging Oros glow-in-the-dark strike indicators works best with a strong headlamp or UV light. Phone lights do not work as well. We recommend rolling the glow-in-the dark strike indicator in your fingers or on the line for about 30 seconds while it is illuminated. The purpose of rolling the indicator is to expose the entire indicator surface to light.

Oros glow-in-the-dark strike indicators start off bright and dim over a period of about five minutes. How long you need to go between charges depends on how the indicator was charged, lighting conditions and your eyesight. Consider switching to a larger indicator than you might use for daylight fishing for greater visibility.

Chartreuse

Chartreuse is a great alternative to white. It is easier to see in a riffle or foamy conditions. We combine chartreuse with other colors depending on the lighting conditions. In lighting conditions with high glare and dark shadows or reflections in the same run we will put on two strike indicators, one chartreuse and one black for better visibility