Mercury PAR 38 100 watt lamp. This bulb is a high efficiency source of actinic radiation, and is used for a number of special applications which take advantage of their strong ultra-violet output. Commonly used for fault and crack detection in alloys. H44GS-100M Mercury Vapour 100W PAR38. BULB/LAMPE/BOMBILLA. ES-E27mm screw cap. This lamp has a 27mm screw cap. Please ensure the lamp holder you are using allows a E27mm lamp. This lamp is also available with a E27mm cap – See our code H44GS100MSK. We ship internationally. Please contact us for prices on delivery. Mercury PAR 38 100 watt lamp. Free delivery within the UK – This bulb is a high efficiency source of actinic radiation, and is used for a number of special applications which take advantage of their strong ultra-violet output. Commonly used for fault and crack detection in alloys. H44GS-100M Mercury Vapour 100W PAR38. BULB/LAMPE/BOMBILLA. We ship internationally. Please contact us for prices on delivery. E26-E27mm screw cap. SYLVANIA BRAND NOW OBSOLETE – A REPLACEMENT WILL BE SUPPLIED IN EXCHANGE. THE NEW VERSION HAS A WIDER BEAM ANGLE WHICH MEANS UV IS DISPERSED RESULTING IN A LOWER INTENSITY.