Riuty LED Chip High Power Led Chip- 3W High Bright Integrated Chip Light Source Bead Spotlight LED Bulb for Bulb Lamp Beads DIY Lighting 25PCS (3000-3200K)

All 25 tested, working and super bright. Remember that these produce a lot of heat so add a thermal pad (not included) under the PCB and mount to something that can spread and dissipate the heat, preferably a heatsink.

The LED's achieve 1W when VF = 3.2 V and IF = 330 mA (x3 less than advertised). You must drive them way past their rated forward voltage and current if you want to increase the output. Here is some more so you can see for yourself:3.27 V and 0.612 A = 2W3.51 V and 0.855 A = 3WThe thermal resistance is about 20 K/W on a passive heat sink! This means at room temperature they will reach about 40 Degrees Celcius at 1W. If you drive them at 3W then the heat sink will reach 80 Degrees Celcius. Therefore I cannot recommend to run these at anything higher than 1W.

luz perfecta y cálida. Me han solucionado las lámparas de la mesita, de verdad mil por mil recomentable

Ces leds sont bien soudés sur leur support, les caractéristiques électriques correspondent à ce qui a été annoncé dans l’annonce. J’ai cependant aucune possibilité de mesurer la longueur d’onde.

Je ne savais pas qu'elles donnaient une lumière un peu jaunâtre mais c'est de ma faute lors de la commande

Led di ottima qualità. Molto luminosi. Spedizione rapida. Tutto perfetto.

Danke!