Black Diamond Astro 250 vs Cosmo 300 - Where are the differences?

Let's take a closer look at the two Astro 250* and Cosmo 300* brand headlamps and see the differences.

Luminosity and luminous range

You can find the specification of lumens on as good again good flashlight. The Black Diamond Astro 250 is 250 Lumen less than the Black Diamond Cosmo 300. This can be up to 300 Lumen. The more lumens a flashlight offers, the brighter it can shine.

Thus, more lumens means a higher maximum luminosity. Thus, the Black Diamond Cosmo 300* performs better in terms of maximum luminosity. Outdoors, more brightness is often handy. When running in the city, this can sometimes be disadvantageous, since the brightness can also dazzle.

The Black Diamond Cosmo 300* offers more in maximum luminous range. It can shine up to 36 m. The Black Diamond Cosmo 300 manages a maximum of 75 m in distance.

The values here come from information and tests of the manufacturers. With unknown dealers, also called China dealers, the data can often not be correct.

The focus of the light cone cannot be freely adjusted in either model. Partially, however, the focus changes with the different fixed light levels.

The luminous intensity is freely dimmable for both the Black Diamond Astro 250 and the Black Diamond Cosmo 300.

Red light and further light colors

Only the Black Diamond Cosmo 300* provides red light. The red light is used for night vision among other things to see better. Also to not be seen by wildlife or when fishing and not to scare off is the red light advantageous.

Besides red and white, some models offer other colors. These are usually for better night vision as well. The Black Diamond Astro 250 and Black Diamond Cosmo 300 both have no other colors.

Batterie und Akkulaufzeit

Both lamps are powered by 3 x AAA batteries. The maximum lighting time is up to 200,0 hours for both. The lowest power is always used for calculation.

For many headlamps there are also special rechargeable batteries from the manufacturer to use the lamps longer. However, normal rechargeable batteries can also be used.

Which headlamp is lighter?

Especially when hiking or climbing, ballast is undesirable. But also when running a lighter lamp is of course more comfortable. The difference in weight is only 2 grams, which is small. With a weight of 81 g, the Black Diamond Astro 250* scores slightly better in terms of lightness. The Black Diamond Cosmo 300 has a WEIGHT of 83 g.

Which lamp is weatherproof?

The headlamps from the comparison both have IP certification. The Black Diamond Astro 250 is certified with IPX4. The Black Diamond Cosmo 300 is certified with IPX8. Thus there is a difference at the point. The first digit stands for protection against dust and dirt. If there is an X in this position, this is not rated. The maximum possible value is 6. The second digit stands for protection against water and moisture. Here the maximum is 9.