My Brinsea plate uses just 12 watts of power and there is no safety hazard even if you keep it in a cardboard box. Also, for folks who brood inside for whatever reason, besides the added safety of a brooder plate, it's also nice not to have that light beaming down on them 24/7. I also think plates have an edge for brand new owners because I've lost count of the # of times I've seen people brood in a too small container or box with with a 250 watt bulb keeping the entire thing too hot, and they just can't escape the heat. Chicks can adjust their temp with a brooder plate even in a small brooder. There are pros and cons to both and both can work equally well, but the plate definitely has some compelling advantages.