4W 3V 3.7V led bulb perfect for DC Dimmer Applications to dimming lighting using battery charge system

4 watt E27 base, DC 3V LED Light bulbs,  Lithium batteries used for outdoor mobile lighting. 3V has positive and negative points. Thread is positive for negative pin. Replacement LED bulb with DC Constant Voltage driver perfect for PWM DC Dimmer, Constant Voltage Dimmer Applications to dimming lighting using battery charge system.

Working Temperature: -35 to +55degree Celsius

Different globe shape option: A60, T45, ST64, G80, G95, G50 Clear glass globe, Transparent glass or Brown glass globe option
Different color temperature option: 2200K, 2700K, 3000K