Compact Fluorescent Light Bulbs (CFLs) and Signaling Devices for the Deaf and Hard of Hearing

Compact Fluorescent Light Bulbs (CFLs) have become popular, not only do they save you money on your electric bill and last longer than incandescent light bulbs, but they are also better for the environment.  Some governments are considering strong measures to phase out incandescent bulbs.  These measures include taxation, or bans on production of incandescent light bulbs.  Australia, Canada, and the US have already announced plans for nationwide bans on incandescent bulbs.

Most people don’t know about one problem.  CFLs do not work well with signaling devices for the Deaf and Hard of Hearing.  You should not use CFLs for any flashing device.  Not only will it rapidly age the bulb, but also it could cause delays in flashing as well as limit the flash pattern options.  Because of the way CFLs operate, e.g., they “warm up” when turned on, the bulb may not turn on/illuminate when signaled or it may flash so quickly that someone might not notice.  Most manufacturers of signaling devices for the Deaf and Hard of Hearing do not recommend using CFLs.