It could test 2 lamps at the same time,one side is AC100-250V,The other side is DC 12V. We are specializing in all kinds of light and lighting  Equipment that test Lumen, luminous efficiency,  lux, cct ,Voltage, Current, Power, Power Factor and Annual power consumption (calculated by 10hrs/day ) of lighting products. All those are CE approved and very popular in our worldwide clients' markets. Today I would like to recommond our New AC/DC lux power meter (LT-AD991 B):New AC/DC lux power meter (LT-AD991 B)  Specification:1. Weight: 2kg.2. Size:300*230*125mm(very compact)3. EXW price: USD4.Input voltage: 100-250V AC/12V DC5.Maximum testing wattage: AC: 300W. DC: 60W6.Testing lamps: CFLs, tubes , LED lamps , halogen lamps ect  Hot selling points:1. 1.The tester series make you more professional to identify the good or bad quality of lighting products, With different adaptor(E14 B15 B22 E27 GU10 G9 E40 G4):2. Testing Power,Power factor, Voltage ,LUX ,color temperature and Annual power consumption.It could test 2 lamps at the same time,one side is AC100-250V,The other side is DC 12V.3. It is safe to use with short circuit protection mechanism, no matter at home or laboratories. If you are also interested in this tester, kindly pls let me know, I'll send PI to you. Tester can be sent to you within 2 days after payment with Express(DHL/FEDEX/UPS/TNT) door by door. Looking forward to your early reply.Risa Lin Shenzhen LITE Tech Ltd.Add:No.88 ,Langbei Industrial Area,Tongle,Longgang,Shenzhen,China. 518116Tel:0086-755-28247652Fax:0086-755-28247655SKYPER:risarisa20121Phone:0086+15813826713

New AC/DC lux demo case power meter (LT-AD991 B)