DIY 6 in 1 Solar Educational Kit Toy Boat Fan Car Robot Power Moving Dog Valueable Solar Chameleon Kit which can assemble up to 6 different models by yourself Great assemabling toy for kid to practise their brain and be educated by solar engergy, to express your kids interest in science, extremly helping your children on creation To performe a great result please direct use under sunlight For indoor fun use a 50 watt halogen bulb The kit will not work in cloudy or shady locations or under a fluorescent light.