R63 spot bulbs have a diameter of 63mm at the widest point. They have an E27 / ES (Edison screw) cap.

£3.23 - £3.61

Product ref: 8888

£2.73 - £3.15

Product ref: 28967

£2.58 - £2.77

Product ref: 13270

£4.13 - £4.62

Product ref: 36642

£3.75 - £4.20

Product ref: 36144

£3.12 - £3.60

Product ref: 36878

£2.73 - £3.15

Product ref: 28966

£3.99

Product ref: 14589

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Replacement bulbs > Spot bulbs > Screw capped > R63 Bulbs (ES cap)