WS500, WS500B
Builder Specification-Grease
| Mobilux EP 0 | Temperature Ambient Below : -15°C/5.0°F |
| Mobilux EP 1 | Temperature Ambient Range : -15°C/5.0°F - 0°C/32.0°F |
| Mobilux EP 2 | Temperature Ambient Above : 0°C/32.0°F |