I recently discovered my 250000 candle power emergency light was good for more than just late night bottle digging and night crawling. It says the bulb is a 5500 degree bulb in the manual! Which makes it good as a source to under light insulators. But as I noticed, the pictures appear best when regular lighting is still present. But it can really make some interesting pics when you turn out the room lighting. Here's a common CD 145 blue aqua B, underlit to perfection.