In the past, people interested in lucid dreams used special electronic devices helping in achieving lucid dreaming. They were DreamLight and its smaller version the NovaDreamer.
Currently this kind of devices is no longer manufactured.
They have beem replaced by another device called the REM-Dreamer, device manufactured in Europe. This lucid dream device was an improved version of the NovaDreamer device.
Lately, the new generation of lucid dream induction devices was created. Today REM-Dreamer device manufacturing is discontinued, because the production has been replaced by more advanced electronic device called the SmartLucider. SmartLucider has a lot of improvements. Weight and size have been reduced a lot. Mask covering most of the face was replaced by much smaller pocket/headband. SmartLucider is more comfortable to sleep with it on your face in the night. Programming of settings was simplified. Presently, it is the best lucid dream mask in the world of lucid dreaming. Also, the price of it has been lowered very much. REM-Dreamer price was around 150 Eur and NovaDreamer price was 275 USD. The price of the SmartLucider is just 70 Eur. The SmartLucider detects eye motion of REM sleep. After detecting it, device gives special stimuli in the form of flashing lights and/or beeps. User can set all parameters of of cue series easily by online internet webpage, which may be opened on PC, tablet, smartphone etc. The SmartLucider device communicates with this website. These flashes will get into your dream and you will have dreams about flashing lights and/or beeping sounds. These blinking lights and/or sounds inside your dream can remind you that you are dreaming during your dream. Thanks to that you may find out that now dream lasts. When it happends you may do whatever you want in your dream state. User can fly, teleport to Mars, meet love from high school or anything like this.