As OPTI Kinetics' first high powered projector was the Solar 575, effects suitable for use on this projector were made '575 Safe' and the '575 tick' logo applied to both the product and the packaging. Although the Solar 575 was replaced by the more compact K4 the '575 Safe' adjunct has stuck.

OPTI Kinetics '575 Safe' 6 inch Effect Wheel images are either screen printed or have a full colour transparency laminated onto toughened glass, with an arrised edge for safety.
Transparencies are laminated with the emulsion side of the film outermost, in a process used on aviation flight controls, to ensure longest possible image life. A metal spacer disc is then glued to the centre of the printed or film side and a plain polycarbonate disc glued to that to protect the surface of the image on the glass. This also creates an air space which allows the flow of air from the projector gate to cool the surface of the colour media as it rotates.

Apart from the obvious advantage of durability of 575 Safe' wheels in higher powered projectors this type also tend, because of the rigidity of glass, to run truer for focus. Also up until the recent introduction of our new plastic 'pushon' boss the thread for the fixing screw on the metal hub was more durable than that of the plastic type. '575 Safe' 6 inch Effect wheels are far superior to plastic versions for focus, durability, longevity and adaptability of use in different projectors.
The entire OPTI Kinetics Range of 6 inch Effect Wheels is offered in '575 Safe' as standard.
An exception was made in the 'special needs' sector which only tends to use the lower powered OPTI Solar 250 and Solar 100C Effect Projectors. Plastic versions of selected designs have continued to be produced for this market, only to be used on OPTI Solar 250 and Solar 100C Effect Projectors. Certain
titles in our range are not suitable for, and therefore not sold to, the special needs market. These are not offered in plastic versions.
There are separate stock codes for '575 Safe' and plastic versions of OPTI Kinetics 6 inch Effect Wheels.