... BULBb, being more energy ,saving , environment , friendly, no lead, no mercury, and radiation less.Application: Marketplace, squares, pub, villa, coffee ... heat sink 5. Easy installation and maintenance 6. No mercury pollution, pure spectrum or UV 7. Working Life >50000H ... 70% balance to be paid before delivering (Western Union or Monogram are welcomed).2. Production lead time for 100~500pcs:6day, ...