When I was living in Malaysia, a country very close to the Equator, my homemade CooKit performed less efficiently when the sun altitude was very high. It appears that the sun altitude range, in the Tropics and some Temperate Zone during the summer, may be too large for fixed setting panel cooker to perform efficiently throughout. The Dual-Setting Panel Cooker (DSPC) described here is designed to lessen this effect, by using two different settings, to better concentrate sunlight according to the sun altitude.