100W Modelling Lamp for Stellar 150/300W Heads. Replacement modelling lamp 100w 220v for Stellar 150W & 300W heads. Long life lamp, Colour Temp 3200k. Care should be taken when screwing these bulbs into the head as with any Halogen bulb, please avoid getting greasy fingerprints onto the glass as this will cause hotspots on the glass when in operation & will decrease its lifespan dramatically. jdd cod. Not suitable for the EX150 heads.