Certificate TUV, E13 2 pcs of single beam bulbs 2 pcs of ballasts, packed with color box user manual, installing screws mounting plate Color Temperature(K): 3000K; 4300K; 5000K; 6000K; 8000K; 10000K; 12000K; 15000K; dark blue; purple; pink; green.yellow.warm white Output wattage(W) 35W - 50W Starting voltage (V) 23KV Lumen (LM) 2800 +- 200 LM Lifetime (H)over 3000 hrs 1. Input Voltage 9V ~ 16V 2. Normal Voltage 12V 3. Normal Current 3.2A 4. Max. Input Current 6.5A 5. Operating Temperature:-40C ~ 105C 6. Output Power 35+-2W 7. Output AC Frequency 250Hz 8. Start Time 45s 9. Start Voltage 20 ~ 25Kv 10. Dimension 86 x 73 x 30 mm (Chord Length = 40 cm) 11. Expected Ballast Life >3500 hrs 12. Radiated EMI Susceptibility S95/54/EC 13. Radiated EMI Emissions S 95/54/EC 14. Cooling Air cooled 15. Open Lamp Circuit Protection: Latch off after 1 second 16. Shot Circuit Protection Latch off after 1 second 17. Flickering No flickering during steady status 18. Conducted EMI Susceptibility: S95/54/EC 19. Conducted EMI Emission S95/54/EC for more detail information please contact with me at skype,zhangqihong1 or massager &yahoo. monazhang1 at hotmail com or you can search it in Google with our company name