Feature 30 Leds For Enough Illumination. 4V 1300Mah Rechargeable Lead-Acid Battery Or 1Pc 3.7V 1200Mah Rechargeable Lithium Battery. Wall And Ceiling-Mountable. With A Test Button And 2 Charge Indicators. Excellent Craftsmanship For Durable Construction. Provide Sufficient Emergency Lighting With This Led Lamp.