Specifications:<br />Bulb type:Cree  XM-L T6<br />900 Lumen output<br />Working voltage: 3.0~3.5V<br />Color: White (1D 6700K)<br />Plate: 20mm<br /><br />package included:<br />1x20mm Cree XM-L T6 900LM LED Emitter.