LED are energy-saving, high light, long life and high power. Both high light and dim light for choices. Product Description You won't have to stop reading a compelling book when there's a power cut if you have this emergency light around. Design Illuminate the dark corners of your bedroom to clearly see even when there's an unexpected power cut by using this emergency light which boasts 42 energy-efficient LED lights. Set the ambience of your room by picking between the two modes (high light and dim light). Power This emergency lights in-built, lead-acid battery is rechargeable. It keeps the lantern running even if it has discharged power over 500 times.