This full colour RGB LED is a 5mm round standard directivity lamp that has a 60s colour changing cycle. Ideal for applications such as toys, games, audio equipment, decorative lighting, etc.
Nice combination of colours and very bright, but I would be wary of powering them from 4.5V as the current will be very high. I found that at about 3.7V the single colour current (either red, green or blue ON) was around 20mA, but it increased with mixed colours to nearly 60mA for white. I suspect that at maximum voltage the reliability may well suffer.
