3 Watt/48LED MR16 12 Volt 2 pin LED Halogen Replacement Bulb Normal halogen bulbs run hot, are inefficient and can fail after a relatively short time. Our LED replacement bulbs have 48 sealed LED units and use just 3 Watts of power. Consider the power saving compared to a normal 20 Watt, or 50 Watt halogen bulb. These lights are not bright enough for S.A.D treatment, but we have engineered to produce a colour rendition index of 90 and with a colour temperature of around 3000k which is ideal for normal household background lighting. The brightness of these units if of course not as high as halogens, but fine in most domestic and background situations. However if you are for any reason not delighted with their functionality we of course offer a 100% no quibble money back guarantee. The other amazing thing about these LED units is that they have an incredible average life of 50,000 hours so you will not be buying replacements for many years! When you consider the huge energy savings, and incredible longlife of these units it is clear they will overtake halogens as the #1 choice for buyers now and in the future. * Very low heat output, which avoids "frying" or "bleaching" objects under display * Colour Rendition Index of 90 for better contrast and colour display * Amazingly consumes just 3 Watts of power in use * Average usage life of 50,000 hours We are also happy to extend a 30 day no quibble guarantee in addition to your usual consumer rights. If you are not delighted with your purchase, please just return to our UK offices for a full refund. We are also guaranteeing all units for a minimum 90 days from the date of purchase - even if you use them 24 hours a day!! Fitting Information: The MR16 12V units only consume 3 Watts of power and this can actually be too low for some standard domestic transformers. Ironically they will normally operate with 1 standard halogen bulb in the lighting circuit (as this activates the transformer minimum power consumption). Please see the link below for details on our own 12 Volt transformers. A4 PDF Spec Sheet Click Here