Ideal lighting for reading a star chart under the night sky. The red light preserves the dark adaptation of the eyes!
Thanks to its very slim credit card format, the StelFlash is ideal for transport and storage with star charts or other astronomical literature.
The light is emitted by LEDs powered by two button batteries sealed in the housing. The batteries cannot be replaced, but the very low power consumption of the LEDs ensures that you can use this product for several years with only a few minutes of lighting per evening. With continuous use, the lifetime is approximately 20 hours.
