Spectroline’s Maxima ML-3500 UV lamps use micro discharge light technology plus a unique filter and bulb/reflector to deliver up to 10 times the UV-A (365 nm) output of conventional high-intensity discharge inspection lamps. With these lamps, nondestructive testing inspectors can see the smallest surface defects, hydrocarbon contamination, and other flaws that escape less powerful lamps. The ML-3500S model features a spot bulb and has a nominal steady-state UV-A intensity of 50,000 µW/cm2 at 38 cm. The ML-3500D spot with diffusing filter provides 14,000 µW/cm2 at 38 cm; while the ML-3500FL features a flood bulb that delivers 4500 µW/cm2 at 38 cm. The lamps come in 120, 230, 240, and 100 V ac versions as well as battery-operated units that include a 12-V, 7 amp-hour rechargeable battery, which will operate the lamp for 2 h.