many are HK specials that may not perform well
Even a poor one will be five times better than an incandescent lamp. The best will only be about twice as good again.
So looking at the cost of the HK ones at a fiver and a torch forum recommendation of Terralux, looks like the question is now TerraLUX TLE-6EXB for £13 vs CREE xP-G2 S4 for £11
torch forum
Got a link? I really should improve my Ryobi torch with an led lamp.
@pdlouche started
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Even a poor one will be five times better than an incandescent lamp. The best will only be about twice as good again.