... customer size acceptable. 3. LED lamp quantity: 144PCS for 600mm, 264PCS for 1200mm, 384PCS for 1500mm. 4. Power: 8W/15W/21W. 5. ... Luminous Flux: 720Lm/600mm, 1320Lm/1200mm, 1920Lm/1500mm. 6. ... electricity saving than normal fluorescent lamp. Application: They are designed for hotel loft, supermarket, factory, waiting room, shops, office ...