" UVP Memorase EPROM Erasers are used for erasing PC boards and wafer trays, shortwave 254nm UV. Size selections range from small desktop, handheld models to large capacity models. -Microchip erasure occurs rapidly with the 254nm UV -All EPROM erasers are UV safe -All EPROM erasers come equipped with conductive foam pads to prevent electrostatic buildup DE-1: The mini DE-1 is portable, battery operated unit (4 AA batteries not included) and uses a 4-watt shortwave tube to erase one EPROM in as little as two minutes. DE-4: The compact desktop DE-4 accommodate up to eight EPROMs and uses a 4-watt shortwave tube witha typical erasure time of 8.3 minutes. DE-50: The DE-50 holds up to 50 EPROMs with erasure in approximately 5.9 minutes -unit can also erase PC boards up to 1.5 inches high. This system is comprised of five shortwave tubes, individual lamp viewports and an automatic shut-off timer. C-91: The C-91 has capacity for 96 EPROMs and features a grid lamp, tube viewports and cumulative hour meter. "