Model： QSF9, QSF20, QSF21 Introduction： Description： 2U-QSF9: Power: 7W/9W/11W/13W/18W Voltage: 110V-130V/220V-240V Luminious(Lm): 350/450/560/650/1000 Ra:≥80 Color Temperature: 2700K-6400K Base type: E27/B22 lifetime(hrs):≥6000 L(mm):130/140/150/175/185 L1(mm):70 A(mm):44.5 ￠(mm)：12 C(mm)：27 Inner Package Info(cm) 7W 4.6?4.6?13.8 9W 4.6?4.6?14.8 11W 4.6?4.6?15.8 13W 4.6?4.6?18.3 18W 4.6?4.6?19.3 Outer Package Info(cm) 7W 51.0?26.0?33.5/100PCS 9W 51.0?26.0?35.5/100PCS 11W 51.0?26.0?37.5/100PCS 13W 51.0?26.0?42.5/100PCS 18W 51.0?26.0?44.5/100PCS 2U-QSF20: Power: 7W/9W/11W/13W/18W Voltage: 110V-130V/220V-240V Luminious(Lm): 350/450/560/650/1000 Ra:≥80 Color Temperature: 2700K-6400K Base type: E27/B22 lifetime(hrs):≥6000 L(mm):125/135/145/170/180 L1(mm):65 A(mm):42 ￠(mm)：12 C(mm)：27 Inner Package Info(cm) 7W 4.2?4.2?15.5 9W 4.2?4.2?15.5 11W 4.2?4.2?15.5 13W 4.2?4.2?19.0 18W 4.2?4.2?19.0 Outer Package Info(cm) 7W 44.0?22.5?33.0/100PCS 9W 44.0?22.5?33.0/100PCS 11W 44.0?22.5?33.0/100PCS 13W 44.0?22.5?40.0/100PCS 18W 44.0?22.5?40.0/100PCS 2U-QSF21: Power: 5W/7W/9W/11W Voltage: 110V-130V/220V-240V Luminious(Lm): 250/350/450/560 Ra:≥80 Color Temperature: 2700K-6400K Base type: E27/B22 lifetime(hrs):≥6000 L(mm): 105/115/120/130 L1(mm):57 A(mm):37 ￠(mm)：9 C(mm)：22 Inner Package Info(cm) 5W 3.7?3.7?12.5 7W 3.7?3.7?12.5 9W 3.7?3.7?14.0 11W 3.7?3.7?14.0 Outer Package Info(cm) 5W 39.0?20.0?14.5/100PCS 7W 39.0?20.0?14.5/100PCS 9W 39.0?20.0?16.0/100PCS 11W 39.0?20.0?16.0/100PCS