Compatibility with Helix: FN2/ 5. 10 x Helix® 4W fluorescent Bulbs 135/ 150mm. 100% Genuine Helix Bulbs. - Bulb Size: 135 mm without Pins / 150 mm Including Pins. - Bulb Power: 4 Watts. - We run these deals as "one-offs", once its gone, its gone.
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