Optics Relevance Price: Low - High Price: High - Low Alphabetically: A - Z Alphabetically: Z - A Budget Ray Box £25.95 Colour Mixing Kit £74.25 IR Probe £16.20 Laser Stand & Rod £16.20 Modulated Laser Receiver £54.34 Raymond the Raybox £25.08 Red Laser Ray Box (plug top PSU) £38.12 Red Laser Raybox (battery powered) £22.40 Replacement UV Tube £10.49 Semiconductor Laser £194.40 Spare Key (flat) £2.70 Spare Key (round) £2.70 Standard Ray Box - 12 Volt £28.35 Standard Ray Box - 24 Volt £29.99 Ultraviolet Lamp Unit Battery Powered £14.22 Ultraviolet Lamp Unit Mains Powered £30.96