... equipment and Self-development team Hangzhou Liangliang Electronic Lighting Co.,Ltd Company Profile Features of our products:1. High quality, low ... , GS, ROHS, CE and CCC etc.2. Long life of more than 6,000 hours (8,000 hours and 10 ... High temp-resistant engineering fireproof materials adopted.6. Used in factory, workshop, lobby, meeting hall, hotel, etc.7. One year guarantee. electronic ballast