The HLV45021LB is a commonly requested specification in the UK.
These are perfect for converting your existing light fitting with a halogen transformer to LED use.
This model gives an output of 21w at 450mA.
It’s shape and size is the same as many rectangular halogen transformers. Thus swapping to this LED driver is simple.
We can see these being hugely popular as we advance into the LED era.
SaveMyLight is the only retailer of these LED drivers.

01/07/19 – The HLV45021LB is being replaced with the HLV45021LA. Although the same specifications the HLV45021LA is slightly longer than the LB version.