LEDtronics® announces the EXL-TPW Series Pure White LED Exit Light Bulbs that presents a much more reliable alternative to conventional T6 incandescent exit-sign tubes.Brighter, longer lasting, dramatically more power-efficient and maintenance-free, the EXL-TPW Series of exit-sign bulbs offers a sensible choice when it comes to replacing energy-hungry, short-lived and breakage-prone old-technology incandescent bulbs.