Switch to led bulbs to reduce your bills by up to 90uses upto 90 less electricity than standard gu10 halogen bulbs25000 hours of light5w bulb shines with 400 lumns 7w bulbs shines with 560 lumensshortcode tabdescriptionare steep electricity bills making you hot under the collar deigned to replace recessed or tracked downlighter energy hungry gu 10 halogen bulbs these energy saving gu10 5w and 7w led spot lights are the same size and have the same fittings so just remove and replace to s