Philips 21112515, 247 W, 4200 K, 26000 lm, Clear, Cool white, 25 mm Philips 21112515. Bulb power: 247 W, Colour temperature: 4200 K, Luminous flux: 26000 lm. Length: 25 mm, Height: 135 mm. Mercury content: 19 mg, Energy efficiency class (old): A+