The light itself is good, very sharp in daylight, the flashing function is effective in traffic. The rubber cover on the charging port came away in the first week though and the on/off switch on a previous light pinged off after a few months use. But this is my third purchase of these lights because in spite of the faults the illumination is that good, and they are very cheap!.
This is still priced at £19.95 on certain online retailer websites so for the price this is excellent. I thought it may be a bit small but once charged and turned on even my partner commented on the brightness of it and it didn't budge when put on the bike as the fixing is very good. Very happy with it