Great to keep as spares if like me you have spot lights round the house. I use halogen as most of mine are on dimmer switches, and these bulbs are dimmable. Was £10 now £4 with click and collect.
These GU10 halogen reflector spot light bulbs have a 40W power consumption, which is equivalent to a 50W standard halogen bulb and give off a warm white light.
2 years Guarantee
Lumens - 300lm