Whilst the new bulbs will reduce electricity bills many people think they are ugly and some are unhappy with the whiter light they produce or have concerns about flickering. However, the Government say the new bulbs are "flicker free" as they no longer use the 50 Hz mains frequency and now operate 1,000 times faster. The Energy Savings Trust also commented that the new bulbs are "bright and clear" and say that most people can't tell the difference.