The Flash Burst (Super Bright) by Grand Illusions is a very nice idea which is made unreliable
through its poor construction with inferior materials. A magician should not use any gimmick which
only works some of the time. This is such a gimmick. There are two main weak points that I have
identified: the toe switch and the secondary on/off switch.
The toe switch is a handmade
item which only works when the stars align. If you buy this gimmick, this is the first thing that
you will need to replace with a real toe switch. You can get a reliable toe switch at an electronics
store for (also called "Sealed Touch Pad Switches") for about $25.
The secondary on/off
switch is a rotary type which does not have a positive on/off feel for whether it is on or off, and
it is very touchy to get into an on position. You should replace this with a higher quality switch.
If you do both of those things, maybe at an additional $30 cost to you, you might be able
to make this into a reliable gimmick. I have yet to decide if I want to do so or return mine as
defective.