575W Halogen Bulb Replacement for ETC Source Four Jr Light Bulb by Technical Precision - 120V Track Light Bulb with G9.5 Medium Bi-Pin Base - 3250K Tungsten Halogen Lamp Bulb - 1
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ETC Source Four PAR EA Model 750 Stage Light 750W 115V 60Hz Bulb Lighting Unit 1 | eBay
575W Halogen Bulb Replacement for ETC Source Four Jr Light Bulb by Technical Precision - 120V Track Light Bulb with G9.5 Medium Bi-Pin Base - 3250K Tungsten Halogen Lamp Bulb - 1
EiKO HPL Source Four Lamp (750W, 230V) HPL750LL/230V B&H Photo
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ETC Source Four PAR EA Model 750 Stage Light 750W 115V 60Hz Bulb Lighting Unit | eBay
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zOLD - Profile, ETC Source Four 750 W Zoom, 15-30 dgr lens
ETC Source Four 750 LEKO Stage Light - No Lens - No Bulb - Shutters, Edison Plug | Reverb
ETC Source 4WRD: An LED Retrofit for the Traditional Source Four | The Lighting Lounge at UsedLighting.com