... , monocrystalline or polycrystalline, conversion efficiency: 15%Light Source40W, induction lamp, 2500 lumens, 0.3 ~ 1.9 foot-candles ... capacity, with a 5-year warrantyLED light: CREE LEDs provide super-bright light from little power, need simple thermal management ... , no running or maintenance costBetter light source - LED lamps feature cool white light without flickering and higher brightness than ...