... T4 3u 20w, 25w , 127V 60HZ ,8000H , Pure tri-phosphor lamp tube ,90% actual power CE/RoHs Energy saving lamp 3u Specification:1. ... : 1 piece of energy saving lamp equal to 5 pieces of incandescent bulbs ,for example ,1 x 25w energy saving lamp's luminous flux(1400LM) ... = 5 X 25w incandescent bulb's luminous ,2. ...