Level 1 30% Low brightness for sleeping Level 2 60% Medium brightness for ambience Level 3 100% High brightness. Skin-friendly touch Healthy and reliable - High-quality silicone, healthy material, more reliable. No need for frequent charging Long-lasting battery life, Built-in 1200mAh large-capacity battery. Timer lights off - Soft light to help you sleep 30-minute timer lights off, no need to get up at night. Warm and soft light to accompany you when you sleep, a lighting helper for pregnant mothers, a gift for children, a good companion for your lover.