Astro Night BG-58 (Torch)he BG 58 astronomy flashlight v2 model now turns onto the red COB light low setting first, offering a soft red glow without cycling through any white lights interfering with your night vision. Other new improvements include the 60% increase in battery capacity, now supporting a long 72 hour runtime on low with reduced LCD brightness for improved astro night vision support. Designed for astronomers, the BG 58 red light astronomy torch offers two