BRAND NEW - 16.5" BOMB STYLE LAVA LAMP with YELLOW GLOW MOTION! Sleek Design goes great in any room! RETRO STYLE that never grows old. The hypnotic effect is very relaxing. You can find yourself staring at one of these great lamps for hours! The lamps we tested started to flow after about 10 -15 minutes. Full Motion began after about a half hour. Nice subtle light thats great for nightlight glow! A true classic!