2u,with 5W,7W,9W 2U energy saving lamp1. Volt: 110V-240V 2. Watts: 18W/20W ... tri-phosphor, low light depreciation.10. Up 80% energy saving than common incandescent lamps. Save considerable cost for consumers ... protection request.Application:1. Recessed lighting, shelf lighting, ceiling/wall coves 2. Cabinet and under counter lighting, office ... design and some our current models 2U energy saving lamp