They managed to pull a maximum of 400w at full load, and it seems that manufacturers are relying on the fact that quadruple digit wattages are better in the consumer's eyes.
他们设法拉满负荷400w的最大的，似乎是在制造商的事实，四是在瓦特数位消费者的眼睛更依赖。
2
This is part of a new wave of incandescents that come in at slightly lower wattages than their claimed equivalents (to comply with California law requiring greater-but not great-efficiency).