1,7w led high power bulb 2,Luminous flux: 620lm 3,Base ... 4500K, Cool White: 6300-6800K Warranty: 2 yearsELECTRIC BULB, LAMP LED LAMPAdvantages1,Environment friendly, no mercuryand or ... with both a protective and concentration effect avoid light loss, so that makes the lamp more concise ... traditional light source, and is the protection of human eyesight and physical health.8,Luminous efficiency is up ...